Creates a symbolic color defined as a shade of another color. A factor > 1.0 would resolve to a brighter or more transparent color, while < 1.0 would resolve to a darker or more opaque color.
another GtkSymbolicColor.
shading factor to apply to color.
if true change the relative alpha value of the color, otherwise change the shade.
ConstructionException GTK+ fails to create the object.
Creates a symbolic color defined as a shade of another color. A factor > 1.0 would resolve to a brighter or more transparent color, while < 1.0 would resolve to a darker or more opaque color.