- More tab size fixes in different styles.
- Don't use new padding until style changes.
- Fix left alignment of labels &| icons.
- Don't draw over UpDown control.
- Fully erase tabs when scrolling.
- More tests.
- Correct size recalculation after setting tab width.
- Fix button sizes to match native.
- Center both vertically and horizontally tab text & icon.
- Use correct left/center alignment flags.
Francois Gouget