feat(settings): ThemePreviewCard with debounced hover preview (TP-20) - #146
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Introduce a compact preview card and optional onPreviewTheme callback on ThemePickerButton so hovering a row loads preview data locally without applying the theme app-wide.
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Jul 27, 2026
feat(settings): ThemePreviewCard with debounced hover preview (TP-20)
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Summary
ThemePreviewCardshowing background, surface, primary/accent swatches, sample text, and editor stripThemePickerButtonwith optionalonPreviewThemecallback, 120ms debounced hover preview, and local preview state (never callsonSelectedon hover)Test plan
flutter test test/features/settings/theme_preview_card_test.dart test/features/settings/theme_picker_button_test.dartonSelectedonPreviewThemeis not providedCloses #115