New feature
- Add new feature, *set image as background* in Button widget.
- Add new functions (*hex_to_rgb, check_light_dark*).
- Add XView to Marquee widget.
- Add Radiobutton widget and fix selectcolor issue. (11 )
Enhancement
- Reorganize properties of BaseButton class.
Bug
- Fix broken links.
- Fix anchor of Button widget. (7)
- Fix focusring appearing for all CircleButton.
- Fix activebackground and activeforeground of Radiobutton.
Remove
- Remove colors.py file
- Remove support for python 2.x.
- Remove unnecessary code from multiple files.
- Remove Information.md file.
- Remove tkmacosx/README.md file.