Clearer focus state in settings

In Settings, the visual highlight of the buttons is comparatively subtle: active/selected and focused states are harder to distinguish than on other controls. Clear, consistently differentiated states—focus, hover, pressed, and selected— help users recognize both where they are and what is currently applied, including at higher zoom and in varied themes. Using more than color alone and ensuring sufficient contrast makes the state changes unambiguous at a glance.

https://www.w3.org/WAI/WCAG22/Understanding/focus-visible https://www.w3.org/WAI/WCAG22/Understanding/focus-not-obscured-minimum https://www.w3.org/WAI/WCAG22/Understanding/non-text-contrast https://www.w3.org/WAI/WCAG22/Understanding/use-of-color