Fullscreen doesn't work, arch linux

[AnonymousMonkeyNo12]

Installed on up to date arch linux via https://aur.archlinux.org/packages/brainworkshop-git

When I set WINDOW_FULLSCREEN = True I get

Traceback (most recent call last):
  File "/usr/share/brainworkshop/brainworkshop.py", line 1112, in <module>
    screen = pyglet.canvas.get_display().get_default_screen()
             ^^^^^^^^^^^^^
AttributeError: module 'pyglet' has no attribute 'canvas'

OS: Arch Linux x86_64
Kernel: Linux 6.15.7-zen1-1-zen
Display (LG Ultra HD): 2160x3840 @ 60 Hz (as 1080x1920) in 27" [External]
Display (C27FG7x): 1920x1080 @ 144 Hz in 27" [External] *
DE: KDE Plasma 6.4.3
WM: KWin (Wayland)