I made something that glitches RGB

I made a program that can make glitchy RGB!
also, i made a block that can add transparancy to the edges costume pixels!

How it works
  1. Make a ist for all the costumes
  2. Repeat step 3, 4, and 7 5 times
  3. Create a list storing transparency
  4. loop for R, G, and B
  5. Create RGB with the R, G, or B but offset by a little bit
  6. Add the RGB to the newest list
  7. Turn the list of pixels into a costume and add it to the list of costumes
  8. Switch the costume to a random one from the list