widgets: drop tabular figures from bar and dash numerics

theme: change light mode backdrop color

port 2.0

quickshell/Modules/ControlCenter/ControlCenterContent.qml

@@ -405,7 +405,7 @@ FocusScope {
         topRightRadius: root.surfaceCornerRadii.y
         bottomRightRadius: root.surfaceCornerRadii.z
         bottomLeftRadius: root.surfaceCornerRadii.w
-        color: Qt.rgba(0, 0, 0, Theme.scrimAlpha)
+        color: Theme.withAlpha(Theme.backdropColor, Theme.scrimAlpha)
         opacity: root.host.powerMenuOpen ? 1 : 0
         visible: opacity > 0
         z: CcMetrics.overlayZ

quickshell/Modules/ControlCenter/Widgets/CcSheetDialog.qml

@@ -53,7 +53,7 @@ Item {
         topRightRadius: root.cornerRadii.y
         bottomRightRadius: root.cornerRadii.z
         bottomLeftRadius: root.cornerRadii.w
-        color: Theme.withAlpha(Theme.scrimColor, Theme.scrimAlpha)
+        color: Theme.withAlpha(Theme.backdropColor, Theme.scrimAlpha)
         opacity: root.shown ? 1 : 0
 
         Behavior on opacity {