Files
optimclaw/src/channels/web/static/theme-init.js
T
cba1bc3799 feat(web): add light theme with dark/light/system toggle (#1457)
* feat(web): add light theme with dark/light/system toggle (#761)

Add three-state theme toggle (dark → light → system) to the Web Gateway:

- Extract 101 hardcoded CSS colors into 30+ CSS custom properties
- Add [data-theme='light'] overrides for all variables
- Add theme toggle button in tab-bar (moon/sun/monitor icons)
- Theme persists via localStorage, defaults to 'system'
- System mode follows OS prefers-color-scheme in real-time
- FOUC prevention via inline script in <head>
- Delayed CSS transition to avoid flash on initial load
- Pure CSS icon switching via data-theme-mode attribute

Closes #761

* fix: address review feedback and code improvements (takeover #853)

- Fix dark-mode readability bug: .stepper-step.failed and
  .image-preview-remove used --text-on-accent (#09090b) on
  var(--danger) background, making text unreadable. Changed to
  --text-on-danger (#fff).
- Restore hover visual feedback on .image-preview-remove:hover
  using filter: brightness(1.2) instead of redundant var(--danger).
- Use const/let instead of var in theme-init.js for consistency
  with app.js (per gemini-code-assist review feedback).

Co-Authored-By: CPU-216 <[email protected]>
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

* fix: address CI failures and Copilot review feedback (takeover #853)

- Fix missing `fallback_deliverable` field in job_monitor test
  constructors (pre-existing staging issue surfaced by merge)
- Validate localStorage theme value against whitelist in both
  theme-init.js and app.js to prevent broken state from invalid values
- Add matchMedia addEventListener fallback for older Safari/WebKit
- Add i18n keys for theme tooltip and aria-live announcement strings
  (en + zh-CN) to match existing localization patterns
- Move .sr-only utility from inline <style> to style.css

[skip-regression-check]

Co-Authored-By: CPU-216 <[email protected]>
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

---------

Co-authored-by: Gao Zheng <[email protected]>
Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>
2026-03-20 00:45:17 -07:00

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JavaScript

// Prevent FOUC: apply saved theme before first paint.
// This script must be loaded synchronously in <head> (no defer/async).
(function() {
const stored = localStorage.getItem('ironclaw-theme');
const mode = (stored === 'dark' || stored === 'light' || stored === 'system') ? stored : 'system';
let resolved = mode;
if (mode === 'system') {
resolved = window.matchMedia('(prefers-color-scheme: light)').matches ? 'light' : 'dark';
}
document.documentElement.setAttribute('data-theme', resolved);
document.documentElement.setAttribute('data-theme-mode', mode);
})();