pub trait ColorChooserImplExt: ObjectSubclass {
fn parent_add_palette(
&self,
color_chooser: &Self::Type,
orientation: Orientation,
colors_per_line: i32,
colors: &[RGBA]
);
fn parent_color_activated(&self, color_chooser: &Self::Type, rgba: RGBA);
fn parent_rgba(&self, color_chooser: &Self::Type) -> RGBA;
fn parent_set_rgba(&self, color_chooser: &Self::Type, rgba: RGBA);
}