fix(mobile): align built-in theme colors with desktop

[juliusmarminge]

The default mobile theme had independently defined colors that reversed the sidebar and chat surfaces relative to desktop. Other mobile surfaces also used message colors, hardcoded neutrals, or mismatched foregrounds for navigation and controls.

Share the T3 Code default palette with web and generate every mobile palette from the shared theme roles. Align sidebar, selection and hover, controls, statuses, markdown, diffs, terminal, and native composer colors across all six shared themes in light and dark mode. Use a stronger neutral fill for the default light Android frame and iPad sidebar, preserve the shared black sidebar beneath near-black content in dark mode, and give settings groups a stronger tonal fill with readable labels. Android keeps a raised frame around its distinct sidebar and chat panes. Give CMD+K the sheet base and fallback fill while retaining glass and its paired selection colors. Native glass follows the app’s resolved light/dark appearance. Slightly increase default user-message contrast and give fallback glass and composer materials a visible fill without weakening their tint twice. Generate Android's native alert resources from the stock palette. Fix native color serialization so translucent chip colors render correctly on iOS and Android. Keep muted selected-row labels and diff hunk headers readable across the named palettes, preserve distinct dark iPad hover and selection, and preserve opaque native fallback colors.

Validation: 242 focused mobile/web tests and both client typechecks pass. Scoped lint passes with warnings, Kotlin lint passes, and generated theme outputs are current. Rebased onto current main and audited incoming client changes; device preview retry controls use paired secondary roles, and floating device controls use the fallback material fill. Visual verification is left to the maintainer at their explicit request. Development clients containing the native color fixes are installed on iPhone, iPad, Pixel phone, and the Pixel Tablet emulator; subsequent settings and chrome changes are served by Metro. Android native alerts use a fixed stock palette per native appearance because React Native's Alert API does not accept runtime palette colors.

Model: GPT-6 Astra. Harness: Codex.

Summary by CodeRabbit

• Style

  • Refreshed mobile and web light/dark color palettes, including screens, sidebars, cards, drawers, dialogs, inputs, markdown, and status indicators.
  • Improved contrast and readability across selections, code views, messages, headers, and composer surfaces.
  • Standardized hover, selected-row, glass, backdrop, and grouped-card styling across themes.

• Bug Fixes

  • Corrected Android color handling and improved button, icon, retry, and alert-dialog appearance.
  • Updated sidebar navigation and thread-list visuals for clearer selected and inactive states.

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	13.5 KiB	13.5 KiB	−41 B (−0.3%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.1 KiB	7.1 KiB	+10 B (+0.1%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.5 KiB	6.4 KiB	−51 B (−0.8%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	56.3 KiB	56.2 KiB	−44 B (−0.1%)	66.4 KiB	✅
Codex	Live turn messages	10	9	−1 (−10.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	+6 B (+0.0%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.1 KiB	7.1 KiB	+1 B (+0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.4 KiB	6.4 KiB	+5 B (+0.1%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.0 KiB	57.0 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	9	9	0 (0.0%)	21	✅

Baseline: 5378f87 · PR result: a7de28d · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 113.9 KiB
• Claude decoded thread snapshot: 114.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.

[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This is a broad theme-system change that updates product defaults and propagates new colors through mobile UI, native composer/dialog resources, terminals, generated styles, and shared web/mobile palette definitions. Its cross-cutting runtime and build-time effects require human review.

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📒 Files selected for processing (2)

• apps/mobile/src/components/GlassSurface.tsx
• apps/mobile/src/features/keyboard/CommandPalette.tsx

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📝 Walkthrough

Walkthrough

The change centralizes shared T3 Code palettes, regenerates mobile theme outputs, adds contrast validation, and updates native, navigation, control, thread, settings, and status components to use semantic theme tokens.

Changes

Mobile theme migration

Layer / File(s)	Summary
Theme system and generated outputs packages/shared/src/themePalettes.ts, apps/mobile/src/lib/mobileTheme.ts, apps/mobile/generated-uniwind-*, apps/mobile/scripts/*, apps/web/src/themePalette.ts	Shared palettes now drive mobile and web theme generation. Generated CSS, runtime variables, and Clerk colors use updated light and dark values.
Native adapters and platform consumers apps/mobile/src/lib/nativeComposerTheme.ts, apps/mobile/src/native/*, apps/mobile/src/features/terminal/*, apps/mobile/src/features/review/*, apps/mobile/src/features/devices/*	Native composer, terminal, review diff, markdown selection, alert dialog, and device controls now use semantic theme values.
Sidebar navigation surfaces apps/mobile/src/features/threads/*list*, apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx, apps/mobile/src/lib/useMobileNavigationTheme.ts	Sidebar rows, search excerpts, navigation containers, hover states, selection states, and drawer colors now receive explicit sidebar styling.
Semantic UI and status styling apps/mobile/src/components/*, apps/mobile/src/features/settings/*, apps/mobile/src/features/threads/*, apps/mobile/src/features/connection/*	Controls, headers, dialogs, settings, backdrops, thread content, status indicators, and worktree surfaces now use semantic focus, foreground, grouped-card, danger, update, border, and backdrop tokens.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant ThemeGenerator
  participant MobileTheme
  participant GeneratedThemes
  participant MobileUI
  ThemeGenerator->>MobileTheme: resolve light and dark theme variables
  MobileTheme-->>ThemeGenerator: return semantic theme variables
  ThemeGenerator->>GeneratedThemes: write CSS, runtime variables, and Clerk output
  MobileUI->>MobileTheme: read screen or sidebar theme variables
  MobileTheme-->>MobileUI: return surface-specific colors
  MobileUI->>MobileUI: render controls, thread rows, and native surfaces

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Possibly related PRs

• pingdotgg/t3code#11841: Adds Material You layout and native controls that consume mobile theme variables.
• pingdotgg/t3code#10691: Adds Material You palette conversion and related mobile theme variables.

Suggested reviewers: t3dotgg

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 18.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 70 functions across 59 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly identifies the main change: aligning mobile built-in theme colors with desktop.
Description check	✅ Passed	The description clearly explains the changes, rationale, scope, validation, and native-platform details. It does not use the template headings or include UI screenshots, but it is otherwise substantia…

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Actionable comments posted: 6

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Inline comments:
In `@apps/mobile/generated-uniwind-themes.css`:
- Around line 621-623: Update the sidebar muted-foreground and active-row color
roles in ThemeColors within themePalettes.ts so selected-row muted text meets at
least 4.5:1 contrast in every appearance, then regenerate the mobile Uniwind
theme output so --color-thread-selected-foreground-muted reflects the palette
changes.

In `@apps/mobile/src/components/AndroidScreenHeader.tsx`:
- Line 31: Update the Android selected-action path in AndroidHeaderIconButton
and MaterialIconButton so selected controls retain their tonal container state
while applying the accent-header-foreground tint; ensure the selected variant no
longer overrides or ignores tintColorClassName.

In `@apps/mobile/src/components/GlassBackdrop.tsx`:
- Line 13: Update the backgroundColor assignment in GlassBackdrop to apply
themeColorWithAlpha only when color is a string and blur is unsupported;
preserve non-string ColorValue values, including native colors, unchanged.

In `@apps/mobile/src/components/RowPressable.tsx`:
- Around line 24-29: Update the Pressable render callback in RowPressable to
receive the pressed state and show the interaction overlay when either pressed
or hovered; keep it hidden when disabled or neither state is active, while
preserving the existing interactionOpacity behavior.

In `@apps/mobile/src/features/review/nativeReviewDiffAdapter.ts`:
- Around line 192-209: Update the hunkText color mapping in the native diff
color configuration so it meets the 4.5:1 contrast requirement against
hunkBackground for every theme, reusing the regular foreground token or
adjusting the serialized color as appropriate. Preserve the existing
hunkBackground values and all unrelated diff colors.

In `@apps/mobile/src/lib/mobileThemeVariables.ts`:
- Around line 42-45: Update the dark branch for "--color-thread-hover" in the
runtime theme variable mapping to use variables["--color-thread-hover"] directly
instead of variables["--color-grouped-card"], preserving the existing light
branch and keeping hover distinct from selection.

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📥 Commits

Reviewing files that changed from the base of the PR and between cb3d95c and 9bb3b22.

📒 Files selected for processing (79)

• apps/mobile/clerk-theme.json
• apps/mobile/generated-uniwind-default-theme-variables.json
• apps/mobile/generated-uniwind-themes.css
• apps/mobile/global.css
• apps/mobile/modules/t3-markdown-text/android/src/main/java/expo/modules/t3markdowntext/T3ContextChip.kt
• apps/mobile/plugins/withAndroidModernAlertDialog.cjs
• apps/mobile/scripts/generate-uniwind-themes.mts
• apps/mobile/scripts/generate-uniwind-themes.test.ts
• apps/mobile/src/components/AndroidScreenHeader.tsx
• apps/mobile/src/components/AppText.tsx
• apps/mobile/src/components/ComposerContextSheet.tsx
• apps/mobile/src/components/ControlPill.tsx
• apps/mobile/src/components/FilePreview.tsx
• apps/mobile/src/components/GlassBackdrop.tsx
• apps/mobile/src/components/MaterialButton.android.tsx
• apps/mobile/src/components/MaterialButton.tsx
• apps/mobile/src/components/MaterialConfirmDialog.android.tsx
• apps/mobile/src/components/MaterialFloatingActionButton.android.tsx
• apps/mobile/src/components/MaterialFloatingActionButton.tsx
• apps/mobile/src/components/MaterialIconButton.android.tsx
• apps/mobile/src/components/MaterialIconButton.tsx
• apps/mobile/src/components/MaterialSearchField.tsx
• apps/mobile/src/components/RowPressable.tsx
• apps/mobile/src/components/ScreenHeader.android.tsx
• apps/mobile/src/components/SegmentedControl.tsx
• apps/mobile/src/features/connection/ConnectionStatusDot.tsx
• apps/mobile/src/features/connection/connectionTone.ts
• apps/mobile/src/features/files/SourceFileSurface.tsx
• apps/mobile/src/features/keyboard/CommandPalette.tsx
• apps/mobile/src/features/projects/AddProjectScreen.tsx
• apps/mobile/src/features/review/ReviewSheet.tsx
• apps/mobile/src/features/review/nativeReviewDiffAdapter.test.ts
• apps/mobile/src/features/review/nativeReviewDiffAdapter.ts
• apps/mobile/src/features/settings/SettingsOpenSourceLicensesRouteScreen.tsx
• apps/mobile/src/features/settings/appearance/sections/ThemeAppearanceSection.tsx
• apps/mobile/src/features/settings/components/AutoSettleDaysField.ios.tsx
• apps/mobile/src/features/settings/components/SettingsActionRow.tsx
• apps/mobile/src/features/settings/components/SettingsProjectOverridesSection.tsx
• apps/mobile/src/features/settings/components/SettingsRow.tsx
• apps/mobile/src/features/settings/components/SettingsSection.tsx
• apps/mobile/src/features/terminal/terminalTheme.test.ts
• apps/mobile/src/features/terminal/terminalTheme.ts
• apps/mobile/src/features/threads/CustomSnoozeSheet.shared.tsx
• apps/mobile/src/features/threads/NewTaskContextPickerScreens.tsx
• apps/mobile/src/features/threads/ThreadArrangementSheet.tsx
• apps/mobile/src/features/threads/ThreadComposer.tsx
• apps/mobile/src/features/threads/ThreadCreationFailedCard.tsx
• apps/mobile/src/features/threads/ThreadFeed.tsx
• apps/mobile/src/features/threads/ThreadNavigationSidebar.tsx
• apps/mobile/src/features/threads/ThreadSettingsRows.android.tsx
• apps/mobile/src/features/threads/ThreadSettingsSheet.tsx
• apps/mobile/src/features/threads/git/GitCommitSheet.tsx
• apps/mobile/src/features/threads/sidebar-navigation-shell.tsx
• apps/mobile/src/features/threads/thread-list-items.tsx
• apps/mobile/src/features/threads/thread-list-v2-items.tsx
• apps/mobile/src/features/threads/thread-list-v2-row-appearance.android.ts
• apps/mobile/src/features/threads/thread-list-v2-row-appearance.test.ts
• apps/mobile/src/features/threads/thread-list-v2-row-appearance.ts
• apps/mobile/src/features/threads/thread-search-match.tsx
• apps/mobile/src/features/threads/thread-work-log.tsx
• apps/mobile/src/features/threads/threadPresentation.ts
• apps/mobile/src/features/threads/worktree-setup-card.tsx
• apps/mobile/src/features/voice-input/ComposerDictationControl.tsx
• apps/mobile/src/lib/materialYouTheme.android.ts
• apps/mobile/src/lib/materialYouTheme.test.ts
• apps/mobile/src/lib/mobileTheme.test-support.ts
• apps/mobile/src/lib/mobileTheme.test.ts
• apps/mobile/src/lib/mobileTheme.ts
• apps/mobile/src/lib/mobileThemeVariables.test.ts
• apps/mobile/src/lib/mobileThemeVariables.ts
• apps/mobile/src/lib/nativeComposerTheme.test.ts
• apps/mobile/src/lib/nativeComposerTheme.ts
• apps/mobile/src/lib/useMobileNavigationTheme.ts
• apps/mobile/src/native/SelectableMarkdownText.android.tsx
• apps/mobile/src/native/T3ComposerEditor.ios.tsx
• apps/mobile/src/native/T3ComposerEditor.native.tsx
• apps/web/src/themePalette.test.ts
• apps/web/src/themePalette.ts
• packages/shared/src/themePalettes.ts

💤 Files with no reviewable changes (1)

• apps/mobile/global.css

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