Changing backgrounds will cause a lot of lag until the current color changes. Turbowarp doesn't fix it and the background change doesn't really work on forkphorus. If anyone reduces the background change lag, I'll follow them and will put them in the notes and credits. ___________________________________________ Be careful if you want to turn on turbo mode, it will have flashing lights kinda (so epilepsy warning). Shift + Click the green flag to toggle turbo mode for all projects in scratch. ___________________________________________ Just press the green flag and watch. You can press B to switch the background to black and W to switch it to white. Or you can just tap to switch it. I thought it was kinda satisfying... Fullscreen not really recommended, it makes it look a little bit worse, but use it if you want to. ¯\_(ツ)_/¯ I'll respond to all comments, unless I get a ton (which I don't think I will).