It doesn't look like GTK+ Color chooser has an HSV mode, see: https://athenajc.gitbooks.io/python-gtk-...ooser.html
However, you should be able to use python's colorsys ( https://docs.python.org/3/library/colorsys.html )
to convert from get_rgba to HSV specific documentation here
However, you should be able to use python's colorsys ( https://docs.python.org/3/library/colorsys.html )
to convert from get_rgba to HSV specific documentation here