Error when navigating to graph view

[lgtout]

I'm using the latest commit on master.
When in regular (non-manual) mode, and I tap G to see the graph view of performance, the app exits and I get this error in the console:

2023-01-01 11:19:58.217 Python[54254:3765688] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to /var/folders/34/vs3gz3zn02sbkz6z556qyszw0000gn/T/org.python.python.savedState
Traceback (most recent call last):
  File "/Users/bayo/dev/brainworkshop-5/brainworkshop.py", line 4820, in <module>
    pyglet.app.run()
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/app/__init__.py", line 107, in run
    event_loop.run(interval)
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/app/base.py", line 186, in run
    timeout = self.idle()
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/app/base.py", line 247, in idle
    self.clock.call_scheduled_functions(dt)
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/clock.py", line 262, in call_scheduled_functions
    item.func(now - item.last_ts, *item.args, **item.kwargs)
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/app/base.py", line 153, in _redraw_windows
    window.dispatch_event('on_draw')
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/window/__init__.py", line 1363, in dispatch_event
    super().dispatch_event(*args)
  File "/opt/homebrew/lib/python3.10/site-packages/pyglet/event.py", line 415, in dispatch_event
    if handler(*args):
  File "/Users/bayo/dev/brainworkshop-5/brainworkshop.py", line 4646, in on_draw
    graph.draw()
  File "/Users/bayo/dev/brainworkshop-5/brainworkshop.py", line 1590, in draw
    self.create_batch()
  File "/Users/bayo/dev/brainworkshop-5/brainworkshop.py", line 1622, in create_batch
    self.batch.add(3, pyglet.gl.GL_LINE_STRIP,
AttributeError: 'Batch' object has no attribute 'add'

[lgtout]

No longer crashes after fix for #49. But app is blank, with no graph displayed, after tapping G.

[xantares]

yes, pyglet 2.x support is not complete yet