Gaia Sky 3.4.2
- add support for reference system transformations to STIL data provider.
- add image format and quality to preferences dialog for screenshots and frame output system.
- add dark background to content frame in welcome screen.
- do not force-show dataset manager when no base data is found.
- labels in shape objects not showing up, focusable shape objects not working.
- unchecked cast in focus check method.
- welcome screen Gaia Sky icon causing problems with macOS package.
- initialize screenshots and frame output post processor even if not initially active.
- add note concerning support for Apple M1/2 ARM.