How to make buttons different colours in Python GTK3 (using gi)?

Question

My latest head-scratcher is to build a silly little app in Python3 using GTK3, with colours other than fog-grey on the buttons. I have spent the last few days googling for h

Answer 1

Inspired by @boosth, this is the modified code (wrap the button, and apply the colour to the wrapper - see lines commented with # <----).

However, while it changes the colour of the event box, the button itself remains the same. So, this is NOT what I was looking for, but so far this is the best answer.

from gi.repository import Gtk, Gdk

class ButtonWindow(Gtk.Window):

    def __init__(self):
        super().__init__(title="Button Test")
        self.set_border_width(10)

        hbox = Gtk.Box(spacing=10)
        self.add(hbox)
        hbox.set_homogeneous(False)

        # make the button
        button = Gtk.Button('Test Button')
        buttonWrapper = Gtk.EventBox()                  # <----
        buttonWrapper.add(button)                       # <----
        hbox.pack_start(buttonWrapper, True, True, 0)   # <----

        # change the colour of the wrapper ....
        buttonWrapper.modify_bg(Gtk.StateType.NORMAL, Gdk.color_parse("green"))
        buttonWrapper.modify_bg(Gtk.StateType.ACTIVE, Gdk.color_parse("red"))
        buttonWrapper.modify_bg(Gtk.StateType.SELECTED, Gdk.color_parse("blue"))


window = ButtonWindow()        
window.connect("delete-event", Gtk.main_quit)
window.show_all()
Gtk.main()

There must be a way to do this....