feat: add Switch thumb-* and track-* color utilities#1826
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Map thumb-* and track-* to the React Native Switch thumbColor and trackColor props via @prop, mirroring the existing tint-* utility. These utilities existed in v4 but were missing in v5. Closes nativewind#1757
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What
Adds two custom utilities to
theme.css:thumb-*maps a color to the React Native SwitchthumbColorproptrack-*maps a color to the React Native SwitchtrackColorpropBoth follow the same
@proppattern as the existingtint-*utility, reading the value from--color-*.Why
Fixes #1757. v4 provided
thumb-*utilities and track color values for styling the Switch component, and these were not listed in the migration guide as intentionally removed. This restores that behavior in v5. The mapping approach (color tothumbColor/trackColorvia@prop) matches what was suggested in the issue.Tests
Added
src/__tests__/switch.tsxcoveringthumb-blackandtrack-black, following the existing test conventions. The full suite passes: