Improvements:
- Add ability to plot image widget using boxes rather than a bitmap, with new drawing mode option
- Add widget order option in key widget
- Export dialog now uses multiple threads
- Python 3.9 compatibility fixes
Minor changes:
- Show exception dialog if crash occurs outside main thread
- Added Brazilian Portuguese description for desktop file
- Use python3 by default for in-place run
Bug fixes:
- Fix icons in tutorial
- Fix case when positions in bar widget are set, then removed
- Truly all files are shown in import dialog, if requested
- Fix browse button in export dialog
- Fix stylesheet for polygon widget
- Fix invalid escape sequences warnings
- Fix parametric date creation for non-English locales