[sudo-tee]

Buttons, tabs, list rows and panel chrome previously derived paint and interaction styles through separate paths. Route them through private component recipes and a flat computed-style normalizer while retaining existing raw styles, theme overrides and legacy geometry. Live span serialization writes directly into its output to avoid intermediate style snapshots.

• Keep ui.styled canonical and provide ui.themed_style as a compatibility alias.
• Share recipes across action/dialog buttons, tabs, select/palette/mux rows and panel chrome. Add opt-in button variants/sizes, disabled activation, selectable row styling, and explicit row/chrome override precedence.
• Resolve hover/selection in a deterministic order, clear stale disabled callbacks, and copy shared styles before assigning bar IDs.
• Share surface pixel normalization, support bar close-part tokens, and supply palette-owned row hover paint to native drawing through an additive optional field. Existing native fallback paints are inventoried and retained for incomplete producers.
• Refresh open built-in widget palettes and default chrome on theme changes, preserving instance overrides and using weak references so closed widgets can be collected. Lazy child/chrome tokens use their widget's explicit palette.
• Update LuaLS types, authoring examples, the implementation plan, and reproducible style/component/overlay benchmarks. The final contract is documented in docs/ui-computed-style.md.

Validation:

• scripts/test-lua.sh: 598 successes, 0 failures/errors using LuaJIT/Busted.
• StyLua checks pass on all touched Lua, including types.
• Zig 0.17 fmt --check and git diff --check pass.
• zig build test-lua and zig build test were attempted but external Ghostty/LuaJIT/font dependency downloads fail with HttpConnectionClosing. Native compilation, screenshots and DPI/hit-region acceptance remain unverified.

Lua render+overlay-serialization benchmark, baseline 68709b3 vs this change: 25 rows 0.953→0.896 ms; 100 rows 3.813→3.509 ms; 500 rows 25.380→24.408 ms. Allocated bytes/row increase about 3%; component-only allocations increase about 0.6%. These are host-specific Lua samples, not native frame-time claims. No generic style cache or synthetic pressed/focus behavior is introduced.

Row styles intentionally expose only supported text/background/radius/hover paint; unsupported row geometry fields error. Existing segment padding and native placement/hit-region calculations remain the compatibility boundary. Native visual/build acceptance is pending before merging.

[github-actions]

📦 PR builds · 28 Oct 2026

Platform	Download
🪟 Windows	hollow-windows-pr-f898a9c
🐧 Linux	hollow-linux-pr-f898a9c

Build details

Detail	Value
🧬 Commit	f898a9c
🕒 Started	28 Oct 2026, 22:05 UTC
✅ Completed	28 Oct 2026, 22:15 UTC
🔗 Build run	#67

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