Small updates to progress-saving, rank system, sound design and post processing — Joon Shining Steam update #266630

• Your progress in an incomplete course is now saved, so you can return to the world map and play other courses, then return to your incomplete course at the furthest level you reached • If you repeat a level and get a lesser rank, it now doesn’t override the highest rank you’ve previously achieved for that level • General sound design upgrades • New post processing effects in world6