Pyglet

Bugfixes
--------
- Allow creation of non-power-of-two compressed Textures. (78)
- Fix EventDispatchers surpressing `AttributeError`s. (87)
- Fix external lib loading on Windows under Python 3.8. (90)

Improvements
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- Windows: Add support for `Desktop Window Manager` composition for smoother rendering.
- TextureAtlases allow a single pixel border to avoid rendering artifacts.
- Add support for `conda`-installed FFmpeg on macOS (92)

Bugfixes
--------
- Fix PNG encoder saving upside-down images due to incorrect pitch. (83)
- pyglet.info shows more platform specific information.

Improvements
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- Documentation has been rebased on the standard RTD theme.
- Other documentation clarifications and improvements.
- New `MouseStateHandler` convenience class.

Bugfixes
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- Fix Allocator creating orphaned regions.
- Allow npot compressed texture loading.
- Fix MachOLibraryLoader failing on lib names containing extra "."s.

Fix incorrect glXSwapIntervalEXT arguments for Xlib contexts.

Bugfixes
--------
- Fix crash due to inconsistent API when changing Label or HTMLLabel color. (45)
- Add support for GLX_EXT_swap_control on Linux platforms.

Improvements
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- Removed broken projects from /contrib
- Update setup.py with project_urls and long_description.
- Added Window.get_pixel_ratio function for calculating scaling on HiDPI displays.
- Start some code quality improvements, such as whitespace removal, star imports, etc.

Bugfixes
--------
- Fix invalid argtype in image GDIplus decoder.
- Change sys.is_epydoc to sys.is_pyglet_doc_run to prevent crashing with Anaconda, etc. (9)
- Prevent gl_info.get_version from crashing with blank version string. (36)