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fix: theme color parsing breaks on #rgb shorthand hex (#1213)

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* refactor: add pure hexToRgb helper that handles #rgb shorthand

* fix: handle #rgb shorthand hex in theme color parsing

* test: hexToRgb expands shorthand and rejects invalid input
This commit is contained in:
Afonso Coutinho
2026-06-02 16:30:03 +01:00
committed by GitHub
parent 203c4d83df
commit 3137ee4946
3 changed files with 71 additions and 9 deletions
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static/js/theme.js
+8 -9
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@@ -4,6 +4,7 @@
import Storage from './storage.js';
import uiModule from './ui.js';
import { initColorPickers, attachColorPicker } from './colorPicker.js';
import { hexToRgb } from './color/hex.js';
import { makeWindowDraggable } from './windowDrag.js';
import { snapModalToZone } from './tileManager.js';
@@ -128,10 +129,10 @@ function _syncCustomThemesToServer(ct) {
// --- Syntax color derivation from theme base colors ---
function hexToHSL(hex) {
hex = hex.replace('#', '');
const r = parseInt(hex.substring(0, 2), 16) / 255;
const g = parseInt(hex.substring(2, 4), 16) / 255;
const b = parseInt(hex.substring(4, 6), 16) / 255;
const rgb = hexToRgb(hex) || { r: 0, g: 0, b: 0 };
const r = rgb.r / 255;
const g = rgb.g / 255;
const b = rgb.b / 255;
const max = Math.max(r, g, b), min = Math.min(r, g, b);
let h, s, l = (max + min) / 2;
if (max === min) { h = s = 0; }
@@ -1797,8 +1798,7 @@ function _initPerlinFlow() {
if (bg !== _cachedBg) {
_cachedBg = bg;
// Parse hex to rgb for rgba fade
const h = bg.replace('#', '');
const r = parseInt(h.substring(0, 2), 16), g = parseInt(h.substring(2, 4), 16), b = parseInt(h.substring(4, 6), 16);
const { r, g, b } = hexToRgb(bg) || { r: 0, g: 0, b: 0 };
_fadeStyle = `rgba(${r},${g},${b},0.02)`;
}
return _fadeStyle;
@@ -1982,9 +1982,8 @@ function _initEmbers() {
return s.getPropertyValue('--bg-effect-color').trim() || s.getPropertyValue('--fg').trim() || '#c9a95a';
}
function rgba(hex, a) {
const h = hex.replace('#', '');
const n = parseInt(h, 16);
return `rgba(${(n >> 16) & 255},${(n >> 8) & 255},${n & 255},${a})`;
const { r, g, b } = hexToRgb(hex) || { r: 0, g: 0, b: 0 };
return `rgba(${r},${g},${b},${a})`;
}
function draw() {
if (!document.body.classList.contains('bg-pattern-embers')) {