3.2.0

• GUI
  • Fix UIScrollArea.add always returning None
  • Support layer in UIView.add_widget()
  • Fix a bug which caused UIScrollArea to refresh on every frame
  • Add stepping to UISlider (thanks csd4ni3l)
  • Experimental controller support (incl. documentation)
• Text objects are now lazy and can be created before the window
• Introduce arcade.SpriteSequence[T] as a covariant supertype of arcade.SpriteList[T]
  (this is similar to Python's Sequence[T], which is a supertype of list[T])
  and various improvements to the typing of the API that leverage it
• Fixed a nasty memory leak in texture atlases. This only affects projects managing their own atlases
• Fixed a bug causing some events to not trigger on the window's keyboard and mouse state handlers
• New minimum pyglet version is now 2.1.5
• Some shader programs were rewritten to not use geometry shaders in preparation for webgl support