Pyglet

Changes and Improvements
------------------------
- gui: Add alpha value to the Caret's default color.
- docs: Some minor rewording of sections, and type fixes.

Bugfixes
--------
- Fix broken struct format strings in png and ttf decoders.
- text: Clear Group cache when a Layout's Group is changed.
- Fix incorrect string formatting in the timer.py example.

Changes and Improvements
------------------------
- Initialize AudioDriver when media module is imported, prevent pause on first sound playback.
- New TextureArrayBin class for managing TextureArray based atlases.
- macOS: implement "file_drop" support for Windows.
- macOS: add support for CoreAudio, allowing native mp3, aiff, etc. support without FFMpeg.
- macOS: alternative NSApplication based event loop, to avoid missing events on M1 Macs. 794
- text: Caret supports RGBA color, in line with other pyglet objects.
- Windows: New context manager for handling of safer handling of platform resources.

Bugfixes
--------
- Fix numerous bugs remaining with IncrementalTextLayout, with translation, caret, etc. 786
- Windows: fix incorrect on_resize values.
- macOS: numerous memory leak fixes.
- shader: add missing sampler type definitions.
- Add missing docstrings, and various documentation fixes.

Changes and Improvements
------------------------
- windows.key: add support for extended function keys
- Windows now uses "Apartment Threaded" mode for better compatibility with other libraries.
- image: allow blanking newly created Textures (skipped by default when creating from image).

Bugfixes
--------
- input.macos: Fix ControllerManager hot-plugging on macOS.
- font.windows: Fix 32bit crashes with DirectWrite font backend.
- math: Fix incorrect calculation in Mat4.look_at method.
- image: Fix blitting from regions, caused by invalid unpacking settings.

Changes and Improvements
------------------------
- input.win32: ControlManager now supports both DirectInput and XInput devices.
- input: Many cleanups and reorganization.
- math: Add Vec2.reflect method.
- shapes: Add new BezierCurve shape.
- gl: Add support for GL sync functions.

Bugfixes
--------
- gui: Prevent two TextEntry widgets from being active at the same time. 747
- win32: Fix broken lib debug, and multiple related bugs due to depreacted functions.
- input: Controller mappings now indexed correctly on macOS and Windows.

Changes and Improvements
------------------------
- shapes: Batch and Group can now be changed on shapes after instantiation, similar to Sprites.
- font: DirectWrite & Freetype fonts now expose a `filename` attribute. macOS not yet implemented.
- Windows: DirectWrite fonts parse font names in a more correct manner. Setting `pyglet.options['dw_legacy_naming']`
to True will restore the old behavior, but this may be removed at a later date.
- math: Vec types can now be updated with slices (`velocity[:] = 1, 2`)
- math: Matrix operations now behave more like GLSL.

Bugfixes
--------
- macOS: fix crash when supplying OpenGL Config without explicit major/minor versions 739
- To prevent crashing on many OpenGL drivers, Textures are no longer initialized with empty data.
- fixed `font_comparison.py` example.

Bugfixes
--------
- Fix Config.opengl_api being always set to None.
- Windows: fix Display.get_default_screen() always returning the first index.

Changes
-------
- Remove legacy Xlib backend code.
- Add initial support for Compute Shaders.
- Windows: a high performance event timer is requested by the PlatformEventLoop.