[Fixes music not looping]
-Some tiles are/may be transparent. I believe this is due to how paint.NET makes tiles brighter.
-The music may not loop on Wii U. This should not be a problem in the near future.
-The background looks kinda funny. I tried to change the kelp's textures to match the bg, but it didn't work. /shrug
-The Wii U version lacks some things, such as the palette icons and the level preview background.
-Semi-solid platforms have a set texture. I didn't realize it was a bad idea until afterwards.
-I apologize for not uploading any mods recently. I am busy with school and making themes like this take lots of time and effort. I will be back in the swing of things on my next break (which is winter break, I do believe.)
-The music is not mine. I plan on creating my own in-game music in the future.
-Credit to Buntendo for the Wii U port!