Update to 3.1:
- added initial support for placeholder previews in rich text editor;
- new theme selector with previews;
- added Progress clock, based on code from Peter Fajdiga;
- removed Flat theme (too similar to Default);
- updated internal HTML layout to be simpler and more future proof;
- add dynamic offset to themes with enabled background;
- events are now always synced;
- allow to zoom contents of rich text editor;
- use Plasma theme font by default;
- set initial focus for rich text editor;
- move bundled themes to XML data file;
- some other fixes.