pick_color

Description:

public async Variant pick_color (Parent? parent, Cancellable? cancellable) throws Error

Lets the user pick a color from the screen.

When the request is done, callback will be called. You can then call [method@Portal.pick_color_finish] to get the results.

this	a [class@Portal]
parent	parent window information
cancellable	optional [class@Gio.Cancellable]
callback	a callback to call when the request is done
data	data to pass to `callback`