There's been some fantastic feedback over on Reddit with the first ever post there on Slice Overdrive - check it out - and so I've made some modifications.
Backgrounds Updated
Redesigned the backgrounds to have a better contrast and color-contrast ratio while still keeping them animated.
Level Editor Fixed and Uplifted
Added 9 different weather effects including an opacity setting in the menu so you can now slice through rain
Redesigned the level editor 'placeable' bar so that each category is a tab and weather and theme are now top level
Uplifted the settings modal so that publishing and clearing/deleting is a bit easier to understand
General Fixes
When deleting levels, it now also removes your backup files for the level - oops
Switched some variables to ints to avoid storing strings - facepalm
The Level Details card was not updating once you finished a level or replay, so I told it off and now it's behaving
Now hopefully I can move onto getting some of the ambience sfx in and then add new hazards!