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Recreate accent style tag if removed during page init

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The <style id="umbra-accent"> tag injected by index.html gets removed
during page initialization. useTheme now defensively recreates the tag
if it's missing, ensuring color changes from the settings page work.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Kyle 2026-03-12 20:39:37 +08:00
parent b202ee1a84
commit f9359bd78a
1 changed files with 9 additions and 6 deletions
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15
frontend/src/hooks/useTheme.ts
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@ -16,8 +16,8 @@ export function useTheme() {
const { settings } = useSettings(); const { settings } = useSettings();
// Only apply accent color once settings have loaded from the API. // Only apply accent color once settings have loaded from the API.
// Updates the <style id="umbra-accent"> tag injected by index.html. // Creates or updates a <style id="umbra-accent"> tag with !important vars.
// Uses !important to beat @layer base defaults in the stylesheet. // The tag may be removed during page init, so always recreate if missing.
useEffect(() => { useEffect(() => {
if (!settings) return; if (!settings) return;
@ -28,12 +28,15 @@ export function useTheme() {
const h = preset.h.toString(); const h = preset.h.toString();
const s = `${preset.s}%`; const s = `${preset.s}%`;
const l = `${preset.l}%`; const l = `${preset.l}%`;
const css = `:root{--accent-h:${h} !important;--accent-s:${s} !important;--accent-l:${l} !important}`;
// Update the persistent <style> tag (inline style attr gets stripped) let el = document.getElementById('umbra-accent');
const el = document.getElementById('umbra-accent'); if (!el) {
if (el) { el = document.createElement('style');
el.textContent = `:root{--accent-h:${h} !important;--accent-s:${s} !important;--accent-l:${l} !important}`; el.id = 'umbra-accent';
document.head.appendChild(el);
} }
el.textContent = css;
try { try {
localStorage.setItem('umbra-accent-color', JSON.stringify({ h, s, l })); localStorage.setItem('umbra-accent-color', JSON.stringify({ h, s, l }));