Greptile Summary

This PR replaces the single-color icon indicator in the theme settings list with a compact 3-color square swatch preview for both app themes and editor themes. The implementation is straightforward and well-structured:

Changes:

• The Item component now receives a swatches array instead of color/isDark props, delegating swatch rendering to the new createSwatchPreview helper.
• getAppThemeSwatches extracts the three primary colors from app theme objects.
• getEditorThemeSwatches reads swatch colors from theme config objects.
• The SCSS adds styling for the swatch grid layout (60×60 px flex container with a 1.5rem × 1.5rem grid).

The UI enhancement is clean, self-contained, and integrates well with the existing theme system without introducing functional issues.

Confidence Score: 5/5

• Safe to merge — no functional issues or regressions identified.
• The PR implements a well-scoped UI enhancement without introducing bugs. The swatch preview logic correctly handles both configured app themes (using their actual colors) and editor themes (using theme config values). The CSS changes are minimal and focused. All code paths are consistent with the existing theme system design.
• No files require special attention.

_{Last reviewed commit: bd025aa}