klyn.gui.windows.themes.ThemeManager.effectiveAppearanceMode
method

    public static effectiveAppearanceMode(mode as String = null) as String:

Description

Resolves `system` into `light` or `dark`.

Custom theme names are returned unchanged. This lets a window or the global appearance mode target a registered application theme without overloading the meaning of the built-in light/dark slots.

    print(ThemeManager.effectiveAppearanceMode())