Add QMdiSubWindow titlebar customization issues, including title bar
icons, to ISSUES.md, and add a working example of a custom title bar.
This is a full-featured, drop-in replacement that could also be modified
for use in a QMainWindow or QDialog settings.
Closes#63.
Created sample workaround in `example/whatsthis.py`, showing how to
style the `QWhatsThis` widget using `QPalette`, and added a workaround
description to `ISSUES.md`.
Closes#59.
Import shared definitions from `/example`, and remove numerous forms of redundant code, including compatibility definitions. Also, fix a few minor issues with dialogs being too small in the test suites.
Add shared code between the examples, to reduce the amount of
boilerplate used in each example. Includes shared colors, Qt5/Qt6 compat
definitions, argparsers, and app startup/exec code.
Alex Huszagh