feat(theme): introduce dms classic interface style

- Expressive remains in place where Classic drops pills, shape morph, and setting sidebar color badges
- Classic defaults corner style to Fixed and stacks settings groups into continuous cards
- section dividers setting provides a slider to enhance the lines or remove them entirely for a clean look
Port 2.0

flake.lock

@@ -3,11 +3,11 @@
     "dank-qml-common": {
       "flake": false,
       "locked": {
-        "lastModified": 1793150560,
-        "narHash": "sha256-Vx8riKxgP2X/KZ/nzDn3WxC/wrYqAwa4yh9J6FurUEw=",
+        "lastModified": 1793183831,
+        "narHash": "sha256-23DNWShmRTKreSalQQZ7TE3fL3u+q7DprECU5EVEC5k=",
         "owner": "duxlabs-dev",
         "repo": "dux-qml-common",
-        "rev": "3d56a375f29b691074cb61411356966da8ad060e",
+        "rev": "b602c9e1b7521bab36e3b5fb0f9485dd5ef6f531",
         "type": "github"
       },
       "original": {

quickshell/Common/SettingsData.qml

@@ -308,6 +308,7 @@ Singleton {
     property int motionEffect: SettingsData.AnimationEffect.Standard
     onMotionEffectChanged: saveSettings()
     property string density: Spec.SPEC.density.def
+    property string interfaceStyle: Spec.SPEC.interfaceStyle.def
     property bool m3ElevationEnabled: Spec.SPEC.m3ElevationEnabled.def
     onM3ElevationEnabledChanged: saveSettings()
     property int m3ElevationIntensity: Spec.SPEC.m3ElevationIntensity.def
@@ -337,6 +338,8 @@ Singleton {
     property real foregroundLayerTransparency: Spec.SPEC.foregroundLayerTransparency.def
     property real blurLayerOutlineOpacity: Spec.SPEC.blurLayerOutlineOpacity.def
     onBlurLayerOutlineOpacityChanged: saveSettings()
+    property real sectionDividerOpacity: Spec.SPEC.sectionDividerOpacity.def
+    onSectionDividerOpacityChanged: saveSettings()
     property string tooltipSurfaceColor: Spec.SPEC.tooltipSurfaceColor.def
     onTooltipSurfaceColorChanged: saveSettings()
     property string tooltipSurfaceCustomColor: Spec.SPEC.tooltipSurfaceCustomColor.def
@@ -1747,8 +1750,17 @@ Singleton {
         }
     }
 
+    function applyInterfaceStyle(who, key, previous) {
+        const from = Store.styleDefault("radiusMode", previous) ?? Spec.SPEC.radiusMode.def;
+        if (radiusMode !== from || isManaged("radiusMode"))
+            return;
+        radiusMode = presetDefault("radiusMode") ?? Spec.SPEC.radiusMode.def;
+        updateCompositorLayout();
+    }
+
     readonly property var _hooks: ({
             "applyDensityPresets": applyDensityPresets,
+            "applyInterfaceStyle": applyInterfaceStyle,
             "applyStoredTheme": applyStoredTheme,
             "regenSystemThemes": regenSystemThemes,
             "updateCompositorLayout": updateCompositorLayout,
@@ -1772,6 +1784,10 @@ Singleton {
             log.warn("Refusing an unknown density:", value);
             return false;
         }
+        if (key === "interfaceStyle" && !["expressive", "classic"].includes(value)) {
+            log.warn("Refusing an unknown interface style:", value);
+            return false;
+        }
         if (key === "cornerRadius")
             return setCornerRadius(value);
         if (key === "radiusStrength")
@@ -1790,18 +1806,22 @@ Singleton {
         return key in AdminPolicy.lockSettings;
     }
 
+    function presetDefault(key) {
+        return DensityPresets.value("frame", key, density) ?? Store.styleDefault(key, interfaceStyle);
+    }
+
     function specDefault(key) {
-        return DensityPresets.value("frame", key, density) ?? SpecUtil.cloneDef(Spec.SPEC[key]?.def);
+        return presetDefault(key) ?? SpecUtil.cloneDef(Spec.SPEC[key]?.def);
     }
 
     function isDefault(keys) {
-        return keys.every(key => !(key in Spec.SPEC) || SpecUtil.isDefault(root[key], DensityPresets.value("frame", key, density) ?? Spec.SPEC[key].def));
+        return keys.every(key => !(key in Spec.SPEC) || SpecUtil.isDefault(root[key], presetDefault(key) ?? Spec.SPEC[key].def));
     }
 
     function resetToDefault(keys) {
         for (const key of keys) {
             if (key in Spec.SPEC && !isManaged(key))
-                Spec.set(root, key, DensityPresets.value("frame", key, density) ?? null, saveSettings, _hooks);
+                Spec.set(root, key, presetDefault(key) ?? null, saveSettings, _hooks);
         }
     }
 

quickshell/Common/Theme.qml

@@ -1127,7 +1127,7 @@ Singleton {
 
     readonly property real notificationExpandedIconSizeNormal: avatarSize
     readonly property real notificationExpandedIconSizeCompact: avatarSize
-    readonly property real notificationButtonCornerRadius: cornerRadiusFull
+    readonly property real notificationButtonCornerRadius: pillControls ? cornerRadiusFull : cornerRadiusL
     readonly property real notificationHoverRevealMargin: spacingXL
     readonly property real notificationContentSpacing: spacingXS
     readonly property real notificationCardPadding: spacingM
@@ -1184,12 +1184,20 @@ Singleton {
         return Shape.scaledRadius(radius, limit, shapeScale, fixedRadius);
     }
 
+    function innerRadius(token) {
+        return Shape.innerRadius(token, shapeScale, fixedRadius);
+    }
+
     function fullRadius(width, height) {
         return Shape.fullRadius(width, height, shapeScale, fixedRadius);
     }
 
+    readonly property bool classicStyle: typeof SettingsData !== "undefined" && SettingsData.interfaceStyle === "classic"
+    readonly property bool shapeMorph: !classicStyle
+    readonly property bool pillControls: !classicStyle
+
     function buttonRadius(width, height, sizeHeight, pressed, round) {
-        return Shape.buttonRadius(width, height, sizeHeight, pressed, round, shapeScale, fixedRadius);
+        return Shape.buttonRadius(width, height, sizeHeight, pressed, round, shapeScale, fixedRadius, shapeMorph, pillControls);
     }
 
     readonly property int densityLevel: {
@@ -1209,7 +1217,7 @@ Singleton {
     readonly property real densityStepM: densityLevel * spacingS
     readonly property real densityStepXS: densityLevel * spacingXXS
     readonly property real groupedListGap: spacingXXS
-    readonly property real groupedListInnerRadius: cornerRadiusXS
+    readonly property real groupedListInnerRadius: innerRadius("xs")
     readonly property real groupedListOuterRadius: cornerRadiusL
 
     property string fontFamily: typeof SettingsData !== "undefined" ? resolvedFontFamily(SettingsData.fontFamily) : DCommon.Fonts.sans
@@ -1287,11 +1295,11 @@ Singleton {
     readonly property real avatarSize: 36
     readonly property real sliderTrackHeight: 16
     readonly property real sliderHandleWidth: 4
-    readonly property real sliderHandleWidthPressed: 2
+    readonly property real sliderHandleWidthPressed: shapeMorph ? 2 : sliderHandleWidth
     readonly property real sliderHandleHeight: 28
     readonly property real sliderHandleGap: 6
-    readonly property real sliderTrackHeightS: 24
-    readonly property real sliderHandleHeightS: 36
+    readonly property real sliderTrackHeightS: classicStyle ? sliderTrackHeight : 24
+    readonly property real sliderHandleHeightS: classicStyle ? sliderHandleHeight : 36
     readonly property real sliderTrackHeightM: 40
     readonly property real sliderHandleHeightM: 52
     readonly property real sliderTrackHeightL: 56

quickshell/Common/settings/SettingsSpec.js

@@ -474,6 +474,10 @@ var LOCAL_SPEC = {
         def: "comfortable",
         onChange: "applyDensityPresets"
     },
+    interfaceStyle: {
+        def: "expressive",
+        onChange: "applyInterfaceStyle"
+    },
     m3ElevationEnabled: {
         def: true
     },
@@ -519,6 +523,10 @@ var LOCAL_SPEC = {
         def: 0,
         coerce: Util.percentToUnit
     },
+    sectionDividerOpacity: {
+        def: 0.1,
+        coerce: Util.percentToUnit
+    },
     focusRingEnabled: {
         def: true
     },

quickshell/Common/settings/SettingsStore.js

@@ -173,9 +173,15 @@ function extractPins(obj) {
     return pins;
 }
 
+function styleDefault(key, style) {
+    if (key === "radiusMode" && style === "classic")
+        return "fixed";
+    return undefined;
+}
+
 // Sizes absent from the file load at the saved density's preset, as a reset would; a save omits only that preset.
-function densityDefault(key, density) {
-    var def = SpecModule.SPEC[key].def;
+function densityDefault(key, density, style) {
+    var def = styleDefault(key, style) ?? SpecModule.SPEC[key].def;
     if (key === "barConfigs" || key === "dockConfigs") {
         var presets = DensityPresets.values(key === "barConfigs" ? "bar" : "dock", density);
         return def.map(function (config) {
@@ -204,7 +210,7 @@ function parse(root, jsonObj) {
         if (SPEC[k].persist === false)
             continue;
         if (!(k in jsonObj))
-            assign(root, k, Util.cloneDef(densityDefault(k, jsonObj.density)));
+            assign(root, k, Util.cloneDef(densityDefault(k, jsonObj.density, jsonObj.interfaceStyle)));
     }
 
     for (var k in jsonObj) {
@@ -243,7 +249,7 @@ function toJson(root, setKeys) {
             value = withoutInstancePositions(value);
         if (k === "builtInPluginSettings")
             value = withoutSessionBackedPluginState(value);
-        if (!setKeys.has(k) && Util.isDefault(value, densityDefault(k, root.density)))
+        if (!setKeys.has(k) && Util.isDefault(value, densityDefault(k, root.density, root.interfaceStyle)))
             continue;
         out[k] = value;
     }

quickshell/Modals/Settings/SettingsSidebar.qml

@@ -360,49 +360,64 @@ Item {
             bottomPadding: SettingsMetrics.paneMargin
             spacing: SettingsMetrics.sidebarGroupGap
 
-            Column {
-                id: searchResultsColumn
+            Item {
+                id: searchResultsFrame
                 width: parent.width - parent.leftPadding - parent.rightPadding
-                spacing: Theme.groupedListGap
+                height: searchResultsColumn.height
                 visible: root.searchActive
 
-                Repeater {
-                    id: searchResultsRepeater
-                    model: ScriptModel {
-                        values: SettingsSearchService.results
+                Column {
+                    id: searchResultsColumn
+                    width: parent.width
+                    spacing: SettingsMetrics.groupGap
+
+                    Repeater {
+                        id: searchResultsRepeater
+                        model: ScriptModel {
+                            values: SettingsSearchService.results
+                        }
+
+                        SettingsSidebarItem {
+                            id: resultDelegate
+                            required property int index
+                            required property var modelData
+
+                            onActiveFocusChanged: {
+                                if (activeFocus)
+                                    root.ensureRowVisible(resultDelegate);
+                            }
+                            isFirstInGroup: index === 0
+                            isLastInGroup: index === SettingsSearchService.results.length - 1
+                            iconName: modelData.icon || "settings"
+                            title: modelData.label
+                            hint: modelData.category
+                            accent: SettingsTabs.accentFor(modelData.page || SettingsTabs.pageForTabIndex(modelData.tabIndex))
+                            active: root.searchSelectedIndex === index
+                            onClicked: keyboard => {
+                                root.searchSelectedIndex = index;
+                                root.selectSearchResult(modelData, keyboard);
+                            }
+                        }
                     }
 
-                    SettingsSidebarItem {
-                        id: resultDelegate
-                        required property int index
-                        required property var modelData
-
-                        onActiveFocusChanged: {
-                            if (activeFocus)
-                                root.ensureRowVisible(resultDelegate);
-                        }
-                        isFirstInGroup: index === 0
-                        isLastInGroup: index === SettingsSearchService.results.length - 1
-                        iconName: modelData.icon || "settings"
-                        title: modelData.label
-                        hint: modelData.category
-                        accent: SettingsTabs.accentFor(modelData.page || SettingsTabs.pageForTabIndex(modelData.tabIndex))
-                        active: root.searchSelectedIndex === index
-                        onClicked: keyboard => {
-                            root.searchSelectedIndex = index;
-                            root.selectSearchResult(modelData, keyboard);
-                        }
+                    StyledText {
+                        width: parent.width
+                        text: I18n.tr("No matches")
+                        font.pixelSize: Theme.fontSizeSmall
+                        color: Theme.surfaceVariantText
+                        horizontalAlignment: Text.AlignHCenter
+                        visible: searchField.text.length > 0 && SettingsSearchService.results.length === 0
+                        topPadding: Theme.spacingM
                     }
                 }
 
-                StyledText {
-                    width: parent.width
-                    text: I18n.tr("No matches")
-                    font.pixelSize: Theme.fontSizeSmall
-                    color: Theme.surfaceVariantText
-                    horizontalAlignment: Text.AlignHCenter
-                    visible: searchField.text.length > 0 && SettingsSearchService.results.length === 0
-                    topPadding: Theme.spacingM
+                Rectangle {
+                    anchors.fill: searchResultsColumn
+                    radius: Theme.groupedListOuterRadius
+                    color: "transparent"
+                    border.width: SettingsMetrics.groupFrameWidth
+                    border.color: Theme.outlineMedium
+                    visible: border.width > 0
                 }
             }
 
@@ -414,55 +429,70 @@ Item {
                 Repeater {
                     model: root.navGroups
 
-                    Column {
-                        id: groupColumn
+                    Item {
+                        id: groupFrame
                         required property var modelData
 
                         width: parent.width
-                        spacing: Theme.groupedListGap
+                        height: groupColumn.height
 
-                        readonly property var visibleIds: {
-                            const ids = [];
-                            for (const entry of modelData) {
-                                if (SettingsTabs.isVisible(SettingsTabs.page(entry.id)))
-                                    ids.push(entry.id);
+                        Column {
+                            id: groupColumn
+                            width: parent.width
+                            spacing: SettingsMetrics.groupGap
+
+                            readonly property var visibleIds: {
+                                const ids = [];
+                                for (const entry of modelData) {
+                                    if (SettingsTabs.isVisible(SettingsTabs.page(entry.id)))
+                                        ids.push(entry.id);
+                                }
+                                return ids;
+                            }
+
+                            Repeater {
+                                model: groupFrame.modelData
+
+                                SettingsSidebarItem {
+                                    id: categoryRow
+                                    required property var modelData
+
+                                    onActiveFocusChanged: {
+                                        if (activeFocus)
+                                            root.ensureRowVisible(categoryRow);
+                                    }
+                                    readonly property bool isHighlighted: root.keyboardHighlightId === modelData.id
+                                    onIsHighlightedChanged: {
+                                        if (isHighlighted)
+                                            Qt.callLater(root.ensureRowVisible, categoryRow);
+                                    }
+
+                                    width: groupColumn.width
+                                    visible: SettingsTabs.isVisible(SettingsTabs.page(modelData.id))
+                                    isFirstInGroup: groupColumn.visibleIds[0] === modelData.id
+                                    isLastInGroup: groupColumn.visibleIds[groupColumn.visibleIds.length - 1] === modelData.id
+                                    iconName: modelData.icon || ""
+                                    title: modelData.text || ""
+                                    hint: SettingsTabs.hubHint(modelData)
+                                    accent: SettingsTabs.accentFor(modelData.id)
+                                    active: root.activeCategoryId === modelData.id && !SettingsTabs.isPluginPage(root.currentPage)
+                                    highlighted: isHighlighted
+                                    onClicked: keyboard => {
+                                        root.keyboardHighlightId = "";
+                                        root.pageRequested(modelData.id);
+                                        root.focusAfterNavigation(keyboard);
+                                    }
+                                }
                             }
-                            return ids;
                         }
 
-                        Repeater {
-                            model: groupColumn.modelData
-
-                            SettingsSidebarItem {
-                                id: categoryRow
-                                required property var modelData
-
-                                onActiveFocusChanged: {
-                                    if (activeFocus)
-                                        root.ensureRowVisible(categoryRow);
-                                }
-                                readonly property bool isHighlighted: root.keyboardHighlightId === modelData.id
-                                onIsHighlightedChanged: {
-                                    if (isHighlighted)
-                                        Qt.callLater(root.ensureRowVisible, categoryRow);
-                                }
-
-                                width: groupColumn.width
-                                visible: SettingsTabs.isVisible(SettingsTabs.page(modelData.id))
-                                isFirstInGroup: groupColumn.visibleIds[0] === modelData.id
-                                isLastInGroup: groupColumn.visibleIds[groupColumn.visibleIds.length - 1] === modelData.id
-                                iconName: modelData.icon || ""
-                                title: modelData.text || ""
-                                hint: SettingsTabs.hubHint(modelData)
-                                accent: SettingsTabs.accentFor(modelData.id)
-                                active: root.activeCategoryId === modelData.id && !SettingsTabs.isPluginPage(root.currentPage)
-                                highlighted: isHighlighted
-                                onClicked: keyboard => {
-                                    root.keyboardHighlightId = "";
-                                    root.pageRequested(modelData.id);
-                                    root.focusAfterNavigation(keyboard);
-                                }
-                            }
+                        Rectangle {
+                            anchors.fill: groupColumn
+                            radius: Theme.groupedListOuterRadius
+                            color: "transparent"
+                            border.width: SettingsMetrics.groupFrameWidth
+                            border.color: Theme.outlineMedium
+                            visible: border.width > 0
                         }
                     }
                 }

quickshell/Modules/ControlCenter/CcMetrics.qml

@@ -33,6 +33,12 @@ Singleton {
     function sheetWidthFor(columns) {
         return sheetPadding * 2 + columns * columnWidth + (columns - 1) * gridGap;
     }
+
+    function pillRadius(width, height) {
+        if (Theme.pillControls)
+            return Theme.fullRadius(width, height);
+        return Math.min(Theme.cornerRadiusL, width / 2, height / 2);
+    }
     readonly property real maxHeightInset: 100
     // Short-grid floors scale with the row unit, or compact would pad small layouts back out.
     readonly property real gridScale: tileHeight / baseTileHeight

quickshell/Modules/ControlCenter/Components/CcTileGrid.qml

@@ -67,7 +67,7 @@ DEditableGrid {
     gravity: true
     rowStep: CcMetrics.gridStep
     packer: items => GridUtils.packCells(clamped(items), placementOrder, columns, null, CcMetrics.gridStep, true).cells
-    placeholderRadius: draggingSlot?.small ? Theme.fullRadius(draggingSlot.width, draggingSlot.height) : (draggingSlot?.tileItem?.bodyRadius ?? Theme.fullRadius(width, CcMetrics.tileHeight))
+    placeholderRadius: draggingSlot?.small ? CcMetrics.pillRadius(draggingSlot.width, draggingSlot.height) : (draggingSlot?.tileItem?.bodyRadius ?? CcMetrics.pillRadius(width, CcMetrics.tileHeight))
 
     commitHandler: items => model.setLayout(withHidden(items))
     onEditModeChanged: {

quickshell/Modules/ControlCenter/Components/CcTileSlot.qml

@@ -131,7 +131,7 @@ DEditableGridSlot {
         passthrough: root.passthrough
         dragging: root.dragging
         resizing: root.resizing
-        cornerRadius: root.small ? Theme.fullRadius(root.width, root.height - root.bodyInset * 2) : (root.tileItem?.bodyRadius ?? Theme.fullRadius(root.width, root.height))
+        cornerRadius: root.small ? CcMetrics.pillRadius(root.width, root.height - root.bodyInset * 2) : (root.tileItem?.bodyRadius ?? CcMetrics.pillRadius(root.width, root.height))
         sizeText: root.cols + "×" + (root.small ? CcMetrics.smallRowFraction : root.rows)
         onResizeStarted: (px, py) => {
             root.biasH = root.small ? CcMetrics.smallRowFraction * root.grid.cellWidth - CcMetrics.gridGap - root.height : 0;

quickshell/Modules/ControlCenter/Components/QuickTilesGroup.qml

@@ -27,7 +27,7 @@ Item {
     readonly property bool receiving: groupId !== "" && host?.hoverGroup === groupId
     // Members keep their own input in edit mode so they can be dragged out instead of moving the group.
     readonly property Item passthrough: memberRow
-    readonly property real bodyRadius: Theme.fullRadius(width, Math.min(height, CcMetrics.tileHeight))
+    readonly property real bodyRadius: CcMetrics.pillRadius(width, Math.min(height, CcMetrics.tileHeight))
     readonly property bool memberDragging: liftedIndex >= 0
 
     property int liftedIndex: -1

quickshell/Modules/ControlCenter/Widgets/CcPinChip.qml

@@ -13,11 +13,11 @@ Rectangle {
     signal toggled
 
     readonly property color contentColor: enabled ? (pinned ? Theme.onSecondaryContainer : Theme.onSurfaceVariant) : Theme.onSurface_38
-    readonly property real restRadius: Math.min(pinned ? Theme.cornerRadiusXL : Theme.cornerRadiusM, height / 2)
+    readonly property real restRadius: Math.min(pinned && Theme.shapeMorph ? Theme.cornerRadiusXL : Theme.cornerRadiusM, height / 2)
 
     height: Theme.buttonHeightXS
     width: iconOnly ? height : content.implicitWidth + Theme.spacingM * 2
-    radius: layer.pressed ? Math.min(Theme.cornerRadiusS, height / 2) : restRadius
+    radius: layer.pressed && Theme.shapeMorph ? Math.min(Theme.cornerRadiusS, height / 2) : restRadius
     color: pinned ? Theme.secondaryContainer : "transparent"
     border.width: pinned ? 0 : Theme.outlineWidth
     border.color: Theme.outlineVariant

quickshell/Modules/ControlCenter/Widgets/CcTile.qml

@@ -80,9 +80,9 @@ Item {
     readonly property bool hasIconBox: (showExpand || opensPage || expanded) && !compact
     readonly property bool showsActive: active && interactive
     readonly property real restRadius: {
-        if (showsActive)
+        if (showsActive && Theme.shapeMorph)
             return Math.min(CcMetrics.tileActiveRadius, width / 2, bodyHeight / 2);
-        return tall ? Math.min(CcMetrics.tallTileRadius, width / 2, height / 2) : Theme.fullRadius(width, bodyHeight);
+        return tall ? Math.min(CcMetrics.tallTileRadius, width / 2, height / 2) : CcMetrics.pillRadius(width, bodyHeight);
     }
     property bool acceptsInput: interactive && enabled
     readonly property bool bodyActive: showsActive && !hasIconBox && !bare
@@ -121,13 +121,13 @@ Item {
         return showsActive ? CcMetrics.tileActiveColor : CcMetrics.iconBoxInactiveColor;
     }
 
-    property real bodyRadius: bodyLayer.pressed ? Math.min(Theme.cornerRadiusM, width / 2, bodyHeight / 2) : restRadius
+    property real bodyRadius: bodyLayer.pressed && Theme.shapeMorph ? Math.min(Theme.cornerRadiusM, width / 2, bodyHeight / 2) : restRadius
     property real iconBoxRadius: {
-        if (boxLayer.pressed)
+        if (boxLayer.pressed && Theme.shapeMorph)
             return Math.min(Theme.cornerRadiusS, CcMetrics.iconBoxSize / 2);
-        if (showsActive)
+        if (showsActive && Theme.shapeMorph)
             return Math.min(CcMetrics.iconBoxActiveRadius, CcMetrics.iconBoxSize / 2);
-        return Theme.fullRadius(CcMetrics.iconBoxSize, CcMetrics.iconBoxSize);
+        return CcMetrics.pillRadius(CcMetrics.iconBoxSize, CcMetrics.iconBoxSize);
     }
 
     width: parent?.width ?? 0

quickshell/Modules/ControlCenter/Widgets/UserTile.qml

@@ -34,7 +34,7 @@ Item {
     readonly property real bodyRadius: {
         if (!background)
             return Theme.fullRadius(avatarSide, avatarSide);
-        return tall ? Math.min(CcMetrics.tallTileRadius, width / 2, height / 2) : Theme.fullRadius(width, height);
+        return tall ? Math.min(CcMetrics.tallTileRadius, width / 2, height / 2) : CcMetrics.pillRadius(width, height);
     }
     readonly property real fallbackGlyphRatio: 0.5
     readonly property string avatarSource: PortalService.profileImageUrl

quickshell/Modules/DBar/BarMetrics.qml

@@ -30,11 +30,13 @@ Singleton {
             return Math.min(Theme.cornerRadiusS, thickness / 2);
         if (thickness < compactPillThickness)
             return Math.min(Theme.cornerRadiusM, thickness / 2);
-        return Theme.fullRadius(thickness, thickness);
+        return Theme.pillControls ? Theme.fullRadius(thickness, thickness) : Math.min(Theme.cornerRadiusL, thickness / 2);
     }
 
     function cornerRadius(thickness, style, joined, pressProgress) {
         const resting = joined ? Math.min(segmentInnerRadius, thickness / 2) : pillRadius(thickness, style);
+        if (!Theme.shapeMorph)
+            return resting;
         const pressed = Math.min(resting, joined || style === "flat" ? segmentPressedInnerRadius : pressedRadius);
         return Math.max(0, resting + (pressed - resting) * Math.max(0, Math.min(1, pressProgress)));
     }

quickshell/Modules/DBar/Widgets/Media.qml

@@ -220,7 +220,13 @@ BasePill {
             height: parent.height
             buttonSize: parent.width
             iconSize: 14 * root.contentScale
-            radius: pressed ? Theme.cornerRadiusXS : (checked ? Theme.cornerRadiusFull : Theme.cornerRadiusS)
+            radius: {
+                if (!Theme.shapeMorph)
+                    return Theme.cornerRadiusS;
+                if (pressed)
+                    return Theme.cornerRadiusXS;
+                return checked ? Theme.cornerRadiusFull : Theme.cornerRadiusS;
+            }
             variant: "filled"
             round: false
             checkable: true

quickshell/Modules/Lock/Widgets/LockPowerWidget.qml

@@ -40,7 +40,7 @@ Item {
         iconName: "power_settings_new"
         iconColor: Theme.onSecondaryContainer
         backgroundColor: root.round ? Theme.secondaryContainer : "transparent"
-        radius: pressed ? Theme.cornerRadiusS : Theme.fullRadius(width, height)
+        radius: pressed && Theme.shapeMorph ? Theme.cornerRadiusS : (Theme.pillControls ? Theme.fullRadius(width, height) : Math.min(Theme.cornerRadiusL, width / 2, height / 2))
         buttonSize: Theme.buttonHeightM
         onClicked: root.lockHost?.showPowerMenu()
     }

quickshell/Modules/Settings/ClipboardTab.qml

@@ -521,7 +521,6 @@ Item {
                 minButtonWidth: 56
                 buttonPadding: Theme.spacingS
                 textSize: Theme.fontSizeSmall
-                spacing: Theme.groupedListGap
                 onSelectionChanged: (index, selected) => root.setVisibleEntryAction(index, selected)
             }
         }

quickshell/Modules/Settings/NetworkWifiTab.qml

@@ -346,7 +346,7 @@ Item {
                     readonly property bool isExpanded: root.expandedWifiSsid === modelData.ssid
 
                     width: parent?.width ?? 0
-                    spacing: Theme.groupedListGap
+                    spacing: SettingsMetrics.groupGap
                     SettingsRow {
                         id: wifiNetworkRow
                         title: wifiNetworkDelegate.modelData.ssid || I18n.tr("Unknown")
@@ -525,7 +525,7 @@ Item {
                     readonly property var detailFields: networkWifiTab.wifiDetailFields(modelData)
 
                     width: parent?.width ?? 0
-                    spacing: Theme.groupedListGap
+                    spacing: SettingsMetrics.groupGap
 
                     SettingsRow {
                         id: savedWifiRow

quickshell/Modules/Settings/PrinterTab.qml

@@ -482,7 +482,7 @@ Item {
                     readonly property bool isStopped: printerData?.state === "stopped"
 
                     width: parent?.width ?? 0
-                    spacing: Theme.groupedListGap
+                    spacing: SettingsMetrics.groupGap
 
                     SettingsRow {
                         iconName: printerDelegate.isStopped ? "print_disabled" : "print"

quickshell/Modules/Settings/SoftwareUpdatesTab.qml

@@ -472,7 +472,7 @@ Item {
 
             Column {
                 width: parent?.width ?? 0
-                spacing: Theme.groupedListGap
+                spacing: SettingsMetrics.groupGap
 
                 Repeater {
                     model: root.packagesExpanded && !SystemUpdateService.isUpgrading ? SystemUpdateService.systemUpdates.slice(0, root.packageListCap) : []

quickshell/Modules/Settings/ThemeSurfacesTab.qml

@@ -251,7 +251,20 @@ Column {
 
     SettingsCard {
         tab: "theme"
-        title: I18n.tr("Density", "appearance settings section label")
+        title: I18n.tr("Appearance")
+        settingKey: "surfaceAppearance"
+
+        SettingsButtonGroupRow {
+            tab: "theme"
+            tags: ["style", "classic", "expressive", "pill", "round", "shape", "morph", "corners", "buttons"]
+            settingKey: "interfaceStyle"
+            text: I18n.tr("Style")
+            model: [I18n.tr("Expressive"), I18n.tr("Classic", "interface style option with one corner radius on controls and no shape change on press")]
+            values: ["expressive", "classic"]
+            value: SettingsData.interfaceStyle
+            fallbackValue: "expressive"
+            onValueSelected: value => SettingsData.set("interfaceStyle", value)
+        }
 
         SettingsButtonGroupRow {
             tab: "theme"
@@ -264,6 +277,20 @@ Column {
             fallbackValue: "comfortable"
             onValueSelected: value => SettingsData.set("density", value)
         }
+
+        SettingsSliderRow {
+            tab: "theme"
+            tags: ["classic", "divider", "dividers", "lines", "rows", "sections", "sidebar", "outline"]
+            settingKey: "sectionDividerOpacity"
+            visible: SettingsData.interfaceStyle === "classic"
+            text: I18n.tr("Section dividers", "classic interface style: strength of the lines between rows of a settings section")
+            minimumLabel: I18n.tr("Off")
+            minimum: 0
+            maximum: 40
+            step: 1
+            value: Math.round((SettingsData.sectionDividerOpacity ?? 0) * 100)
+            onSliderValueChanged: newValue => SettingsData.set("sectionDividerOpacity", newValue / 100)
+        }
     }
 
     SettingsCard {
@@ -277,7 +304,7 @@ Column {
             tags: ["corner", "radius", "rounded", "square", "fixed", "material", "shape"]
             settingKey: "radiusMode"
             text: I18n.tr("Corner style")
-            model: [I18n.tr("Material scale", "corner style: Material shape scale with a strength slider"), I18n.tr("Fixed", "corner style: one radius for every corner")]
+            model: [I18n.tr("Material", "corner style: Material shape scale with a strength slider"), I18n.tr("Fixed", "corner style: one radius for every corner")]
             currentIndex: SettingsData.radiusMode === "fixed" ? 1 : 0
             onSelectionChanged: (index, selected) => {
                 if (selected)

quickshell/Modules/Settings/Widgets/IslandHomeLayoutEditor.qml

@@ -77,13 +77,16 @@ Column {
     readonly property bool hasHidden: disabledGroups.length > 0
     property bool showHidden: false
 
-    readonly property bool isFirstInGroup: parent?.isSettingsGroupHost ? parent.isEdge(root, true) : true
-    readonly property bool isLastInGroup: parent?.isSettingsGroupHost ? parent.isEdge(root, false) : true
-    readonly property real topRadius: isFirstInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-    readonly property real bottomRadius: isLastInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+    // A Loader may hold the editor, so the slot the group sees is the Loader, not the editor
+    readonly property Item groupSlot: parent?.isSettingsGroupHost ? root : parent
+    readonly property bool inGroup: groupSlot?.parent?.isSettingsGroupHost ?? false
+    readonly property bool isFirstInGroup: inGroup ? groupSlot.parent.isEdge(groupSlot, true) : true
+    readonly property bool isLastInGroup: inGroup ? groupSlot.parent.isEdge(groupSlot, false) : true
+    readonly property real topRadius: isFirstInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+    readonly property real bottomRadius: isLastInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
 
     width: parent?.width ?? 0
-    spacing: Theme.groupedListGap
+    spacing: SettingsMetrics.groupGap
 
     SettingsSearchRegistration {
         target: root
@@ -91,8 +94,10 @@ Column {
     }
 
     SettingsRow {
+        inGroup: root.inGroup
+        dividerBefore: root.inGroup && !root.isFirstInGroup
         topRadius: root.topRadius
-        bottomRadius: Theme.groupedListInnerRadius
+        bottomRadius: SettingsMetrics.groupInnerRadius
         body: StyledText {
             width: parent.width
             text: I18n.tr("Drag groups above the clock to sit left of it, below to sit right. Click the eye to hide a group.", "island settings: home layout editor hint")
@@ -114,8 +119,10 @@ Column {
             required property var modelData
 
             reorderList: enabledList
-            topRadius: dragging ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            bottomRadius: dragging ? Theme.groupedListOuterRadius : (position === enabledList.count - 1 && !root.hasHidden ? root.bottomRadius : Theme.groupedListInnerRadius)
+            inGroup: root.inGroup
+            dividerBefore: root.inGroup && !dragging
+            topRadius: dragging ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            bottomRadius: dragging ? Theme.groupedListOuterRadius : (position === enabledList.count - 1 && !root.hasHidden ? root.bottomRadius : SettingsMetrics.groupInnerRadius)
             title: root.presentation[modelData.id].text
             subtitle: root.presentation[modelData.id].description
             iconName: root.presentation[modelData.id].icon
@@ -139,8 +146,10 @@ Column {
     }
 
     SettingsRow {
-        topRadius: Theme.groupedListInnerRadius
-        bottomRadius: root.showHidden ? Theme.groupedListInnerRadius : root.bottomRadius
+        inGroup: root.inGroup
+        dividerBefore: root.inGroup
+        topRadius: SettingsMetrics.groupInnerRadius
+        bottomRadius: root.showHidden ? SettingsMetrics.groupInnerRadius : root.bottomRadius
         title: I18n.tr("Hidden (%1)", "island settings: hidden groups divider, %1 is count").arg(root.disabledGroups.length)
         iconName: "visibility_off"
         visible: root.hasHidden
@@ -157,7 +166,7 @@ Column {
 
     Column {
         width: parent.width
-        spacing: Theme.groupedListGap
+        spacing: SettingsMetrics.groupGap
         visible: root.showHidden && root.hasHidden
 
         Repeater {
@@ -169,8 +178,10 @@ Column {
                 required property int index
                 required property var modelData
 
-                topRadius: Theme.groupedListInnerRadius
-                bottomRadius: index === root.disabledGroups.length - 1 ? root.bottomRadius : Theme.groupedListInnerRadius
+                inGroup: root.inGroup
+                dividerBefore: root.inGroup
+                topRadius: SettingsMetrics.groupInnerRadius
+                bottomRadius: index === root.disabledGroups.length - 1 ? root.bottomRadius : SettingsMetrics.groupInnerRadius
                 title: root.presentation[modelData.id].text
                 subtitle: root.presentation[modelData.id].description
                 iconName: root.presentation[modelData.id].icon

quickshell/Modules/Settings/Widgets/SettingsButtonGroupRow.qml

@@ -36,7 +36,6 @@ SettingsRow {
 
     title: text
     subtitle: description
-    spacing: Theme.groupedListGap
 
     Item {
         id: trailingHost
@@ -60,7 +59,6 @@ SettingsRow {
         x: root.compact ? (parent.width - width) / 2 : 0
         selectionMode: "single"
         currentIndex: root.values.length > 0 ? root.indexOfValue(root.value) : 0
-        spacing: root.spacing
         enabled: root.enabled
         maximumWidth: root.compact ? root.width - SettingsMetrics.rowPaddingH * 2 : -1
         onSelectionChanged: (index, selected) => {

quickshell/Modules/Settings/Widgets/SettingsDisplayPicker.qml

@@ -22,7 +22,7 @@ Column {
     signal hideOnLastDisplayToggled(bool checked)
 
     width: parent?.width ?? 0
-    spacing: Theme.groupedListGap
+    spacing: SettingsMetrics.groupGap
 
     function screenPref(screen) {
         const pref = {

quickshell/Modules/Settings/Widgets/SettingsGroup.qml

@@ -8,7 +8,7 @@ Item {
 
     readonly property bool isSettingsGroup: true
     default property alias content: host.data
-    property real spacing: Theme.groupedListGap
+    property real spacing: SettingsMetrics.groupGap
     property real customPaddingH: SettingsMetrics.rowPaddingH
     property real customPaddingV: SettingsMetrics.rowPaddingV
     property bool highlighted: false
@@ -120,14 +120,22 @@ Item {
             width: root.width
             height: slot.height
             visible: !slot.transparent
-            topLeftRadius: first ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            topRightRadius: first ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            bottomLeftRadius: last ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            bottomRightRadius: last ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+            topLeftRadius: first ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            topRightRadius: first ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            bottomLeftRadius: last ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            bottomRightRadius: last ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
             color: root.highlighted ? Theme.blend(root.slotColor, Theme.primary, SettingsMetrics.highlightBlend) : root.slotColor
-            border.width: Theme.layerOutlineWidth
+            border.width: SettingsMetrics.groupEdgeWidth
             border.color: Theme.outlineMedium
 
+            Rectangle {
+                x: SettingsMetrics.rowPaddingH
+                width: parent.width - SettingsMetrics.rowPaddingH * 2
+                height: Theme.dividerWidth
+                visible: SettingsMetrics.continuousGroups && !parent.first
+                color: SettingsMetrics.groupDividerColor
+            }
+
             Behavior on color {
                 enabled: Theme.currentAnimationSpeed !== SettingsData.AnimationSpeed.None
                 ColorAnimation {
@@ -139,6 +147,16 @@ Item {
         }
     }
 
+    Rectangle {
+        anchors.fill: parent
+        z: 1
+        radius: Theme.groupedListOuterRadius
+        color: "transparent"
+        border.width: SettingsMetrics.groupFrameWidth
+        border.color: Theme.outlineMedium
+        visible: border.width > 0
+    }
+
     Item {
         id: host
 

quickshell/Modules/Settings/Widgets/SettingsMetrics.qml

@@ -36,6 +36,14 @@ Singleton {
     readonly property real sectionLabelTopGap: Math.max(Theme.spacingXS, Theme.spacingS + Theme.densityStepS)
     readonly property real sectionLabelBottomGap: Theme.spacingM
     readonly property real navIconSize: Theme.avatarSize
+    readonly property bool navIconBadges: !Theme.classicStyle
+    readonly property bool continuousGroups: Theme.classicStyle
+    readonly property real groupGap: continuousGroups ? 0 : Theme.groupedListGap
+    readonly property real groupInnerRadius: continuousGroups ? 0 : Theme.groupedListInnerRadius
+    // Rows share one frame in a continuous group so Layer outline never doubles up between them
+    readonly property real groupEdgeWidth: continuousGroups ? 0 : Theme.layerOutlineWidth
+    readonly property real groupFrameWidth: continuousGroups ? Theme.layerOutlineWidth : 0
+    readonly property color groupDividerColor: Theme.withAlpha(Theme.outline, SettingsData.sectionDividerOpacity)
     readonly property real navItemMinHeight: rowMinHeight
     readonly property real sidebarGroupGap: Theme.spacingS
     readonly property real searchBarGap: Theme.spacingM

quickshell/Modules/Settings/Widgets/SettingsReorderList.qml

@@ -1,4 +1,5 @@
 import QtQuick
+import qs.Common
 import qs.DCommon.Widgets
 import "../../../Common/QmlUtils.js" as QmlUtils
 
@@ -9,5 +10,6 @@ DReorderList {
     readonly property bool transparentSlot: true
     readonly property bool firstInGroup: parent?.isSettingsGroupHost ? parent.isEdge(root, true) : true
     readonly property bool lastInGroup: parent?.isSettingsGroupHost ? parent.isEdge(root, false) : true
+    spacing: SettingsMetrics.groupGap
     Component.onCompleted: flickable = QmlUtils.findParentFlickable(root.parent)
 }

quickshell/Modules/Settings/Widgets/SettingsReorderRow.qml

@@ -14,8 +14,8 @@ SettingsRow {
 
     paintBackground: true
     rowColor: dragging ? Theme.blend(SettingsMetrics.rowColor, Theme.onSurface, Theme.stateLayerDrag) : SettingsMetrics.rowColor
-    topRadius: dragging || (position === 0 && reorderList.firstInGroup) ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-    bottomRadius: dragging || (position === reorderList.count - 1 && reorderList.lastInGroup) ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+    topRadius: dragging || (position === 0 && reorderList.firstInGroup) ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+    bottomRadius: dragging || (position === reorderList.count - 1 && reorderList.lastInGroup) ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
     z: dragging ? 100 : 0
 
     function focusHandle(reason) {

quickshell/Modules/Settings/Widgets/SettingsRow.qml

@@ -53,10 +53,12 @@ T.Control {
     readonly property bool hasText: title !== "" || subtitle !== ""
     readonly property bool isHighlighted: settingKey !== "" && SettingsSearchService.highlightSection === settingKey
     property bool highlighted: isHighlighted
+    property bool inGroup: (groupItem.parent?.isSettingsGroupHost ?? false) || (groupItem.parent?.parent?.isSettingsGroupHost ?? false)
     readonly property bool isFirstInGroup: _edge(true)
     readonly property bool isLastInGroup: _edge(false)
-    property real topRadius: isFirstInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-    property real bottomRadius: isLastInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+    property bool dividerBefore: inGroup && !isFirstInGroup
+    property real topRadius: isFirstInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+    property real bottomRadius: isLastInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
     property real minHeight: subtitle !== "" ? SettingsMetrics.rowMinHeightTwoLine : SettingsMetrics.rowMinHeight
     // Keyboard focus on the row or any control inside it tints the row, so navigation reads without a focus ring
     readonly property Item activeItem: Window.activeFocusItem
@@ -141,8 +143,16 @@ T.Control {
         anchors.fill: parent
         visible: root.paintBackground
         color: root.active ? Theme.selectedContainer : root.highlighted ? Theme.blend(root.rowColor, Theme.primary, SettingsMetrics.highlightBlend) : root.rowColor
-        border.width: Theme.layerOutlineWidth
+        border.width: root.inGroup ? SettingsMetrics.groupEdgeWidth : Theme.layerOutlineWidth
         border.color: Theme.outlineMedium
+
+        Rectangle {
+            x: root.paddingH
+            width: parent.width - root.paddingH * 2
+            height: Theme.dividerWidth
+            visible: SettingsMetrics.continuousGroups && root.dividerBefore
+            color: SettingsMetrics.groupDividerColor
+        }
         topLeftRadius: root.topRadius
         topRightRadius: root.topRadius
         bottomLeftRadius: root.bottomRadius

quickshell/Modules/Settings/Widgets/SettingsSidebarItem.qml

@@ -33,12 +33,16 @@ Rectangle {
     }
 
     readonly property var accentPair: Theme.accent(accent)
-    readonly property color badgeColor: accentPair?.container ?? Theme.withAlpha(Theme.primary, Theme.tonalTintAlpha)
-    readonly property color glyphColor: accentPair?.onContainer ?? Theme.primary
+    readonly property color badgeColor: SettingsMetrics.navIconBadges ? accentPair?.container ?? Theme.withAlpha(Theme.primary, Theme.tonalTintAlpha) : "transparent"
+    readonly property color glyphColor: {
+        if (SettingsMetrics.navIconBadges)
+            return accentPair?.onContainer ?? Theme.primary;
+        return active ? Theme.onSelectedContainer : Theme.primary;
+    }
     property bool isFirstInGroup: true
     property bool isLastInGroup: true
-    property real topRadius: active || isFirstInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-    property real bottomRadius: active || isLastInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+    property real topRadius: (active && Theme.shapeMorph) || isFirstInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+    property real bottomRadius: (active && Theme.shapeMorph) || isLastInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
 
     Behavior on topRadius {
         enabled: Theme.currentAnimationSpeed !== SettingsData.AnimationSpeed.None
@@ -65,9 +69,17 @@ Rectangle {
     bottomLeftRadius: bottomRadius
     bottomRightRadius: bottomRadius
     color: active ? SettingsMetrics.selectedRowColor : SettingsMetrics.sidebarRowColor
-    border.width: Theme.layerOutlineWidth
+    border.width: SettingsMetrics.groupEdgeWidth
     border.color: Theme.outlineMedium
 
+    Rectangle {
+        x: Theme.spacingL
+        width: parent.width - Theme.spacingL * 2
+        height: Theme.dividerWidth
+        visible: SettingsMetrics.continuousGroups && !root.isFirstInGroup && !root.active
+        color: SettingsMetrics.groupDividerColor
+    }
+
     Behavior on color {
         enabled: Theme.currentAnimationSpeed !== SettingsData.AnimationSpeed.None
         ColorAnimation {

quickshell/Modules/Settings/Widgets/SettingsTimeRow.qml

@@ -10,6 +10,8 @@ Item {
 
     readonly property bool isSettingsRow: true
     readonly property bool transparentSlot: true
+    readonly property bool inGroup: parent?.isSettingsGroupHost ?? false
+    readonly property bool isFirstInGroup: inGroup ? parent.isEdge(root, true) : true
 
     property string startTitle: ""
     property int startHour: 7
@@ -48,6 +50,15 @@ Item {
     width: parent?.width ?? 0
     height: halves.implicitHeight
 
+    Rectangle {
+        x: SettingsMetrics.rowPaddingH
+        z: 1
+        width: parent.width - SettingsMetrics.rowPaddingH * 2
+        height: Theme.dividerWidth
+        visible: SettingsMetrics.continuousGroups && root.inGroup && !root.isFirstInGroup
+        color: SettingsMetrics.groupDividerColor
+    }
+
     Row {
         id: halves
         width: parent.width
@@ -62,6 +73,8 @@ Item {
 
                 width: root.showEnd ? (root.width - Theme.groupedListGap) / 2 : root.width
                 paintBackground: true
+                inGroup: root.inGroup
+                dividerBefore: false
                 topRadius: Theme.groupedListOuterRadius
                 bottomRadius: Theme.groupedListOuterRadius
                 title: isStart ? root.startTitle : root.endTitle

quickshell/Modules/Settings/Widgets/SettingsToggleCard.qml

@@ -50,8 +50,8 @@ Item {
         SettingsToggleRow {
             id: header
             width: parent.width
-            topRadius: root.firstInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            bottomRadius: root.lastInGroup && !root.expanded ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+            topRadius: root.firstInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            bottomRadius: root.lastInGroup && !root.expanded ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
             tab: root.tab
             tags: root.tags
             settingKey: root.settingKey

quickshell/Modules/Settings/Widgets/SettingsToggleSliderRow.qml

@@ -59,8 +59,8 @@ Item {
         SettingsToggleRow {
             id: header
             width: parent.width
-            topRadius: root.firstInGroup ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
-            bottomRadius: root.lastInGroup && !root.checked ? Theme.groupedListOuterRadius : Theme.groupedListInnerRadius
+            topRadius: root.firstInGroup ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
+            bottomRadius: root.lastInGroup && !root.checked ? Theme.groupedListOuterRadius : SettingsMetrics.groupInnerRadius
             tab: root.tab
             tags: root.tags
             settingKey: root.settingKey

quickshell/PLUGINS/THEME_REFERENCE.md

@@ -50,6 +50,8 @@ Theme.buttonRadius(width, height, buttonHeight, pressed, true)
 
 Use `fullRadius()` for pills and round controls so lower strength values reduce their rounding. `cornerRadiusFull` remains available for compatibility. See the shared [shape reference](../../dux-qml-common/SHAPES.md) for component baselines.
 
+`Theme.buttonRadius(...)` follows the Interface style setting: Classic turns off pills and the press morph. Plugins that hand-roll control shapes can read `Theme.pillControls` and `Theme.shapeMorph` (both false in Classic).
+
 ## Colors
 
 ### Surface Colors

quickshell/Widgets/FeatureCard.qml

@@ -21,7 +21,7 @@ DCard {
     clickable: true
     pad: Theme.spacingL
     restRadius: Theme.groupedListOuterRadius
-    bodyRadius: focusTarget.pressed ? Theme.cornerRadiusM : restRadius
+    bodyRadius: focusTarget.pressed && Theme.shapeMorph ? Theme.cornerRadiusM : restRadius
     implicitHeight: body.implicitHeight + pad * 2
     Accessible.name: heading
     Accessible.description: description

quickshell/tests/admin-policy.test.mjs

@@ -161,12 +161,14 @@ test("set and reset refuse managed keys and change the others", () => {
         AdminPolicy: { lockSettings: { lockBeforeSuspend: true } },
         Spec: { SPEC, set: (root, key, value) => changes.push([key, value]) },
         DensityPresets: loadScript(new URL("../Common/settings/DensityPresets.js", import.meta.url)),
+        Store: SettingsStore,
         density: "comfortable",
+        interfaceStyle: "expressive",
         log: { warn: (...args) => warnings.push(args.at(-1)) },
         saveSettings() {},
         _hooks: {},
         lockBeforeSuspend: true
-    }, ["isManaged", "set", "resetToDefault"]);
+    }, ["isManaged", "set", "resetToDefault", "presetDefault"]);
     context.set("lockBeforeSuspend", false);
     context.set("lockAtStartup", true);
     context.resetToDefault(["lockBeforeSuspend", "acLockTimeout"]);
@@ -237,6 +239,25 @@ test("settings set refuses an unknown density, from IPC too, without saving or m
     assert.deepEqual([moves, saves, SettingsData.density], [[["comfortable", "dense"]], 1, "dense"]);
 });
 
+test("settings set refuses an unknown interface style, from IPC too, without saving", () => {
+    let saves = 0;
+    const SettingsData = settingsDataContext({
+        AdminPolicy: { lockSettings: {} },
+        Spec: loadScript(new URL("../Common/settings/SettingsSpec.js", import.meta.url)),
+        log: { warn() {} },
+        saveSettings: () => saves++,
+        _hooks: {},
+        interfaceStyle: "expressive"
+    }, ["isManaged", "hasSetting", "set"]);
+    const context = vm.createContext({ AdminPolicy: { disableSettingsIpcSet: false }, SettingsData, log: { warn() {} } });
+    for (const handler of settingsIpcHandlers())
+        vm.runInContext(handler, context);
+    for (const value of ["Classic", "flat", ""])
+        assert.equal(context.set("interfaceStyle", value), "SETTINGS_SET_FAILURE", value);
+    assert.equal(context.set("interfaceStyle", "classic"), "SETTINGS_SET_SUCCESS");
+    assert.deepEqual([saves, SettingsData.interfaceStyle], [1, "classic"]);
+});
+
 test("the legacy session migration leaves managed lock settings alone", () => {
     const managed = new Set(["acLockTimeout", "lockBeforeSuspend"]);
     const changes = [];

quickshell/tests/density-presets.test.mjs

@@ -137,8 +137,10 @@ test("an unknown previous level moves sizes from comfortable, the level Theme re
 
 test("resets land on the current level's preset", () => {
     const changes = [];
-    const settings = settingsFunctions(["barConfigDefault", "dockConfigDefaults", "specDefault", "isDefault", "resetToDefault", "isManaged"], vm.createContext({
+    const settings = settingsFunctions(["barConfigDefault", "dockConfigDefaults", "specDefault", "isDefault", "resetToDefault", "isManaged", "presetDefault"], vm.createContext({
         DensityPresets: presets,
+        Store: loadScript(new URL("../Common/settings/SettingsStore.js", import.meta.url)),
+        interfaceStyle: "expressive",
         DockConfig: loadScript(new URL("../Common/settings/DockConfig.js", import.meta.url)),
         SpecUtil: loadScript(new URL("../DCommon/Common/settings/SpecUtil.js", import.meta.url)),
         Spec: { SPEC: Spec.SPEC, set: (root, key, value) => changes.push([key, value]) },

quickshell/tests/interface-style.test.mjs

@@ -0,0 +1,83 @@
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import test from "node:test";
+import vm from "node:vm";
+import { loadScript } from "./qml-script.mjs";
+
+const Spec = loadScript(new URL("../Common/settings/SettingsSpec.js", import.meta.url));
+const store = loadScript(new URL("../Common/settings/SettingsStore.js", import.meta.url));
+const presets = loadScript(new URL("../Common/settings/DensityPresets.js", import.meta.url));
+
+function settingsFunctions(names, context) {
+    const source = readFileSync(new URL("../Common/SettingsData.qml", import.meta.url), "utf8");
+    context.root = context;
+    for (const name of names) {
+        const found = source.match(new RegExp(`^    function ${name}\\(([^)]*)\\) \\{\\n[\\s\\S]*?^    \\}`, "m"));
+        assert.ok(found, name);
+        vm.runInContext(found[0], context);
+    }
+    return context;
+}
+
+function settings(globals) {
+    return settingsFunctions(["applyInterfaceStyle", "presetDefault", "isManaged", "updateCompositorLayout"], vm.createContext(Object.assign({
+        Store: store,
+        Spec,
+        DensityPresets: presets,
+        AdminPolicy: { lockSettings: {} },
+        density: "comfortable",
+        compositorLayoutRefreshNeeded() {}
+    }, globals)));
+}
+
+test("a style change moves the corner style with it unless the user picked one", () => {
+    const cases = [
+        ["expressive", "classic", "scale", "fixed"],
+        ["classic", "expressive", "fixed", "scale"],
+        ["expressive", "classic", "fixed", "fixed"],
+        ["classic", "expressive", "scale", "scale"]
+    ];
+    for (const [from, to, mode, expected] of cases) {
+        const root = settings({ interfaceStyle: from, radiusMode: mode });
+        Spec.set(root, "interfaceStyle", to, () => {}, { applyInterfaceStyle: root.applyInterfaceStyle });
+        assert.equal(root.radiusMode, expected, `${from} -> ${to} at ${mode}`);
+    }
+    const managed = settings({ interfaceStyle: "expressive", radiusMode: "scale", AdminPolicy: { lockSettings: { radiusMode: "scale" } } });
+    Spec.set(managed, "interfaceStyle", "classic", () => {}, { applyInterfaceStyle: managed.applyInterfaceStyle });
+    assert.equal(managed.radiusMode, "scale");
+});
+
+test("a load fills a missing corner style from the file's interface style, and a save omits only that", () => {
+    for (const [style, mode] of [["classic", "fixed"], ["expressive", "scale"]]) {
+        const root = { settingsConfigVersion: 999 };
+        store.parse(root, { configVersion: 999, interfaceStyle: style });
+        assert.equal(root.radiusMode, mode, style);
+        assert.equal("radiusMode" in store.toJson(root, new Set(["interfaceStyle"])), false, style);
+        root.radiusMode = mode === "fixed" ? "scale" : "fixed";
+        assert.equal(store.toJson(root, new Set(["interfaceStyle"])).radiusMode, root.radiusMode, style);
+        const kept = { settingsConfigVersion: 999 };
+        store.parse(kept, { configVersion: 999, interfaceStyle: style, radiusMode: root.radiusMode });
+        assert.equal(kept.radiusMode, root.radiusMode, style);
+    }
+});
+
+test("under classic the corner style's default, modified state and reset follow the style", () => {
+    const changes = [];
+    const root = settingsFunctions(["specDefault", "isDefault", "resetToDefault", "isManaged", "presetDefault"], vm.createContext({
+        Store: store,
+        DensityPresets: presets,
+        SpecUtil: loadScript(new URL("../DCommon/Common/settings/SpecUtil.js", import.meta.url)),
+        Spec: { SPEC: Spec.SPEC, set: (target, key, value) => { changes.push([key, value]); target[key] = value; } },
+        AdminPolicy: { lockSettings: {} },
+        saveSettings() {},
+        _hooks: {},
+        density: "comfortable",
+        interfaceStyle: "classic",
+        radiusMode: "scale"
+    }));
+    assert.equal(root.specDefault("radiusMode"), "fixed");
+    assert.equal(root.isDefault(["radiusMode"]), false);
+    root.resetToDefault(["radiusMode"]);
+    assert.deepEqual(changes, [["radiusMode", "fixed"]]);
+    assert.equal(root.isDefault(["radiusMode"]), true);
+});

quickshell/translations/settings_search_index.json

@@ -101,6 +101,26 @@
     "page": "notifications",
     "icon": "palette"
   },
+  {
+    "section": "surfaceAppearance",
+    "label": "Appearance",
+    "tabIndex": -1,
+    "category": "Interface style",
+    "keywords": [
+      "appearance",
+      "buttons",
+      "classic",
+      "corners",
+      "expressive",
+      "interface",
+      "morph",
+      "pill",
+      "round",
+      "shape",
+      "style"
+    ],
+    "page": "theme_surfaces"
+  },
   {
     "section": "wallpaper",
     "label": "Appearance",
@@ -835,32 +855,6 @@
     "icon": "schedule",
     "description": "Clock, weather, locale"
   },
-  {
-    "section": "density",
-    "label": "Density",
-    "tabIndex": -1,
-    "category": "Interface style",
-    "keywords": [
-      "bar",
-      "comfortable",
-      "compact",
-      "control center",
-      "dense",
-      "density",
-      "dock",
-      "frame",
-      "interface",
-      "island",
-      "menus",
-      "padding",
-      "rows",
-      "size",
-      "spacing",
-      "spacious",
-      "style"
-    ],
-    "page": "theme_surfaces"
-  },
   {
     "section": "selectedMonitor",
     "label": "Display",
@@ -1428,6 +1422,32 @@
     "icon": "keyboard",
     "description": "Shortcuts, keyboard, mouse"
   },
+  {
+    "section": "density",
+    "label": "Interface density",
+    "tabIndex": -1,
+    "category": "Interface style",
+    "keywords": [
+      "bar",
+      "comfortable",
+      "compact",
+      "control center",
+      "dense",
+      "density",
+      "dock",
+      "frame",
+      "interface",
+      "island",
+      "menus",
+      "padding",
+      "rows",
+      "size",
+      "spacing",
+      "spacious",
+      "style"
+    ],
+    "page": "theme_surfaces"
+  },
   {
     "section": "blurLayerOutline",
     "label": "Layer outline",
@@ -2093,6 +2113,26 @@
     "page": "theme_surfaces",
     "icon": "unfold_more"
   },
+  {
+    "section": "sectionDividerOpacity",
+    "label": "Section dividers",
+    "tabIndex": -1,
+    "category": "Interface style",
+    "keywords": [
+      "classic",
+      "divider",
+      "dividers",
+      "interface",
+      "lines",
+      "outline",
+      "rows",
+      "section",
+      "sections",
+      "sidebar",
+      "style"
+    ],
+    "page": "theme_surfaces"
+  },
   {
     "section": "_hub_security_accounts",
     "label": "Security",
@@ -2291,6 +2331,25 @@
     ],
     "icon": "volume_up"
   },
+  {
+    "section": "interfaceStyle",
+    "label": "Style",
+    "tabIndex": -1,
+    "category": "Interface style",
+    "keywords": [
+      "buttons",
+      "classic",
+      "corners",
+      "expressive",
+      "interface",
+      "morph",
+      "pill",
+      "round",
+      "shape",
+      "style"
+    ],
+    "page": "theme_surfaces"
+  },
   {
     "section": "notificationSummaryFontSize",
     "label": "Summary font size",