setAccentColor

open override fun setAccentColor(accentColor: Boolean)(source)

open override fun setAccentColor(accentColor: String)(source)

Sets the system accent color and highlighting of active window border.

The accentColor parameter accepts the following values:

Color string - Sets a custom accent color using standard CSS color formats (Hex, RGB, RGBA, HSL, HSLA, or named colors). Alpha values in RGBA/HSLA formats are ignored and the color is treated as fully opaque.
true - Uses the system's default accent color from user preferences in System Settings.
false - Explicitly disables accent color highlighting for the window.

Examples: