Returns the UI chrome foreground colour that matches COLORTHEME.
This maps the UI light/dark theme flag to shared constants. It does
not drive ACI-7 drawing colours — use
foregroundColorForBackground for canvas-linked inversion.
Parameters
isLightTheme: boolean
true when COLORTHEME indicates a light UI theme
(value 1); false for a dark UI theme (value 0).
Returns the UI chrome foreground colour that matches
COLORTHEME.This maps the UI light/dark theme flag to shared constants. It does not drive ACI-7 drawing colours — use foregroundColorForBackground for canvas-linked inversion.