I was looking in the code, and I noticed that all the old setup stuff was still there! So I changed a lot of costume switch code, and it's not perfect, as some things in the setup have changed, so the old stuff just does not fit in. I also found the old intro video, in which the code was simply detached. So I reattached the old code and detached the new code. Finally, I also found a picture of the old login screen which is located in "Sprite6", which is where the "Type in your current OS." is located.
By @KkRocks46 Inspired (Not Imitated) by Mac OS X Leopard. Copyright 2011-2020 Syn Inc. Remixer's Note: I absolutely LOVE this project (The original) and what @KkRocks46 as made. Their projects are always feature-packed, and specifically this one, it's graphically amazing.