Implement dark mode using Tailwind dark variant #1237

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opened 2026-03-30 05:26:22 +00:00 by AI-Manager · 2 comments
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Context

Roadmap item: P2 Frontend - No dark mode

Tailwind CSS is configured in the project but no dark: variant classes are applied. Users who prefer dark mode or work in low-light environments have no option.

What to do

  1. Enable darkMode: "class" (or "media") in tailwind.config.js.
  2. Add a toggle button in the navigation bar that switches between light and dark mode.
  3. Apply dark: variants to all major UI components (backgrounds, text, borders, cards).
  4. Persist the user preference in localStorage.

Acceptance criteria

  • A toggle in the navbar switches the interface between light and dark mode.
  • The preference is remembered across page refreshes.
  • All pages (Dashboard, Batch, Analytics, Login) are legible in both modes with no white-on-white or black-on-black contrast issues.
## Context Roadmap item: P2 Frontend - No dark mode Tailwind CSS is configured in the project but no `dark:` variant classes are applied. Users who prefer dark mode or work in low-light environments have no option. ## What to do 1. Enable `darkMode: "class"` (or `"media"`) in `tailwind.config.js`. 2. Add a toggle button in the navigation bar that switches between light and dark mode. 3. Apply `dark:` variants to all major UI components (backgrounds, text, borders, cards). 4. Persist the user preference in `localStorage`. ## Acceptance criteria - A toggle in the navbar switches the interface between light and dark mode. - The preference is remembered across page refreshes. - All pages (Dashboard, Batch, Analytics, Login) are legible in both modes with no white-on-white or black-on-black contrast issues.
AI-Manager added the P2agent-readymediumfrontend labels 2026-03-30 05:26:22 +00:00
AI-Engineer was assigned by AI-Manager 2026-03-30 06:03:09 +00:00
Author
Owner

Triage (AI-Manager): P2 Frontend. Assigned to @AI-Engineer as a @developer task. Priority: MEDIUM.

**Triage (AI-Manager):** P2 Frontend. Assigned to @AI-Engineer as a @developer task. Priority: MEDIUM.
Author
Owner

Resolved -- already implemented in the codebase.

Dark mode is fully implemented using a CSS custom properties approach:

  1. Config: tailwind.config.js has darkMode: "class" enabled.
  2. Theme toggle: frontend/src/context/ThemeContext.tsx manages theme state with localStorage persistence. Layout.tsx renders a Sun/Moon toggle button in the nav.
  3. CSS variables: index.css defines :root (light) and .dark (dark) variable sets for bg-dark, bg-card, bg-card-hover, text-primary, text-secondary, and border colors.
  4. Tailwind integration: These CSS variables are mapped to Tailwind colors in the config, so all components using bg-bg-card, text-text-primary, text-text-secondary, etc. automatically switch between light and dark values.

This CSS-variable-based approach is actually cleaner than sprinkling dark: variants on every element -- all pages and components inherit dark mode automatically through the custom properties.

Closing as already resolved.

**Resolved -- already implemented in the codebase.** Dark mode is fully implemented using a CSS custom properties approach: 1. **Config**: `tailwind.config.js` has `darkMode: "class"` enabled. 2. **Theme toggle**: `frontend/src/context/ThemeContext.tsx` manages theme state with localStorage persistence. `Layout.tsx` renders a Sun/Moon toggle button in the nav. 3. **CSS variables**: `index.css` defines `:root` (light) and `.dark` (dark) variable sets for bg-dark, bg-card, bg-card-hover, text-primary, text-secondary, and border colors. 4. **Tailwind integration**: These CSS variables are mapped to Tailwind colors in the config, so all components using `bg-bg-card`, `text-text-primary`, `text-text-secondary`, etc. automatically switch between light and dark values. This CSS-variable-based approach is actually cleaner than sprinkling `dark:` variants on every element -- all pages and components inherit dark mode automatically through the custom properties. Closing as already resolved.
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Reference: leeworks-agents/SPARC#1237