Tkmacosx

Bugs
- Fix Button disabled state (39)

Improvement
- Improve focus out appearance (39)

Bugs
- Fix button with image disappear on setting size (37)
- Fix spacebar invoke on Button not working (32)

Bugs
- Fix Button face color and foreground color.
- Fix Button border line color changing to black when switching from dark to light mode.
- Fix washed out background color of button when window is not in focus (28)

Remove
- Remove adapting highlightbackground for consistency (27)

Enhancements
- Increase button border intensity by 0.15
- Minor improvements to the overall appearance of the button.

Bug

- Fix unknown color name "systemWindowBackgroundColor" (20)

Enhancement
- Exclude test package in setup.py

New feature
- Partial "borderless" button option support for ttk widgets (19)

Bug

- Fix widgets, not auto-switch light/dark mode. (18)
- Fix Button not working with ttk widgets. (19)

New feature
- Add Tests.
- Add "-selectcolor" option to ColorVar list.

Enhancement
- Reorganise tkmacosx package files into multiple packages.
- Reorganise button items to a separate class.

Bug
- Fix `Misc._configure()` returning 'NoneType'. (12)
- Fix text misalignment when changed dynamically under certain situations.
- Fix -activebackground" not accepting mac deafult system colors names.
- Fix button appearance when toplevel is out of focus.
- Fix `focusthickness=0` glitch of button.
- Fix ColorVar not working with -focuscolor of button.
- Fix unknown option "-bitmap". error
- Fix "-width", "-height" have effect on 0 value.
- Fix Marquee `cget()` issues.
- Fix "-activebackground" not changing with Variable.
- Fix ColorVar not working with few Button options.
- Fix lag when Button is configured.
- Fix an error with `Button.destroy()`. (17)