Takes a Gdk.RGBA background color and returns a suitably-contrasting foreground color, i.e. for determining text color on a colored background. There is a slight bias toward returning white, as white generally looks better on a wider range of colored backgrounds than black.
| bg_color |
any Gdk.RGBA background color |
|
a contrasting Gdk.RGBA foreground color, i.e. white ({ 1.0, 1.0, 1.0, 1.0}) or black ({ 0.0, 0.0, 0.0, 1.0}). |