Tip: Layer 3 backgrounds and tides disappear when you hit a message box, so plan your level around that. For example, you can add a sublevel without layer 3 at the start/midpoint, and include your message there.
I should have something witty to put here (even if it's just to update dated info), shouldn't I?
Site schemes will be back eventually. There's no timetable on when that will be, however- I know just as much as you do. The rest of the mods know just as much as I do on the matter as well, in case you were wondering.
As I have stated before, the site schemes are currently disabled due to various sections of the site being in development so that I don't have to continuously maintain them while working. There are far more pressing matters that I'll work on before focusing on bringing the schemes back.