Wildcard: Fix label hover state
Created by: lrhacker
Fixes #32185 (closed)
Test plan
The hover styles for the labels of radio and checkbox controls were identical for both the light and dark theme, making the text illegible in dark mode:
After adjusting the CSS to reference a variable set on a per-theme basis, the hover style in dark mode now has a slightly lighter shade of text for the label (as a counterpart to the light mode label using a slightly darker shade of text):