- reworked 'Fit to screen' option to keep wallpaper centered
- added support for the scheme color property, color is applied to the background in case the screen isn't covered by the current image
- made the random mode a bit more "random" by not repeating the last few images
- also fixed a bug where not all scenes where used in the random mode
- added toggle for the scene transition fade

Fix performance issue if wallpaper is running for a long time

Removed duplicate audio and image files to significantly reduce file size