python - Button not getting styled in PyGI -


i trying create button red instead of default colour. applying style through cssprovider() button's colour not change. doing wrong ?

here code:

from gi.repository import gtk, gdk  css = """ gtkbutton {     background-color: red; } """  class mywindow(gtk.window):      def __init__(self):         gtk.window.__init__(self, title="theme")         self.resize(640, 480)         self.connect("delete-event", gtk.main_quit)          cssprovider = gtk.cssprovider()         cssprovider.load_from_data(css)          screen = gdk.screen.get_default()         sc = gtk.stylecontext()         sc.add_provider_for_screen(screen, cssprovider,                 gtk.style_provider_priority_application)          btn = gtk.button(label="click")         self.add(btn)  win = mywindow() win.show_all() gtk.main()

the problem background-image takes precedence on background-color, former set in theme (button gradient). can force complete replacement of background using "background" property or using "background-color" along un-setting "background-image":

gtkbutton {     background: red; }

or:

gtkbutton {     background-image: none;     background-color: red; }

see: https://bugzilla.gnome.org/show_bug.cgi?id=728027


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