Gtk.CssProvider crashes Nicotine 3.3.0.dev3 at startup

[Timogris]

Nicotine+ Version: 3.3.0.dev3
GTK Version: 4.10.1
Python Version: 3.10.10 (main, Mar  5 2023, 22:26:53) [GCC 12.2.1 20230201]

Type: <class 'TypeError'>
Value: Gtk.CssProvider.load_from_data() takes exactly 3 arguments (2 given)
Traceback:   File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/application.py", line 106, in on_activate
  File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/frame.py", line 275, in __init__
  File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/interests.py", line 155, in __init__
  File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/interests.py", line 448, in update_visuals
  File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/widgets/theme.py", line 583, in update_widget_visuals
    if color is None:
  File "/usr/lib/python3.10/site-packages/pynicotine/gtkgui/widgets/theme.py", line 529, in set_widget_fg_bg_css

[slook]

Closing as invalid, since the issue was already fixed in 1c86815 Nicotine+ 3.3.0.dev4

Please install latest Nicotine+ 3.3.0.dev5 https://github.com/nicotine-plus/nicotine-plus/blob/master/doc/TESTING.md