Major Changes

Merged #1037 , brings some MAJOR changes and improvements to the level editor, thanks @DanisLixo !
Merged #864 , added a theme changer to resource packs, which allows you to fully customize the theme and background of levels, please enjoy! example pack is in https://discord.com/channels/1331330157667160064/1508490194733760697
Merged #919 , added a warp zone pipe to the level editor, compatible with level packs, hopefully.
Added metadata variations, bit tricky to explain here, but allows for object specific variations, will explain in the wiki, gimme a bit to write it up.
Added a pipe cutscene gizmo, will allow you to create custom pipe cutscenes for your custom levels (i forgot to make the music toggleable, will get on that asap and will be in next snapshot (see you in 2 months i guess))

Fixes

FIXED THE STUPID DUMB BARREL PARTICLES.
Fixed a crash with hidden coins level persistence
Fixed frozen bricks having bad performance
Fixed piranha plants not hurting the player in anti grav
Redid the room type system, to be more consistent and hopefully fix coin heaven death pits
Added missing coins to 3-4 ANN
Fixed an infinite loop with logic gates
fixed a bunch of duplicate enemies being in7-3
Adjusted SMBS aspect ratio setting to be accurate
World and level select icons are now editable via packs