funny project
Very cute! I was hoping something would happen when I clicked the green button…
Back in the days of the original Mac, there was a very popular program that put up a dialog saying “completely erase disk?” with Yes and No buttons, but when you hovered over No the whole dialog would move so that you were hovering over Yes instead.
Should’ve used 
→ Unused blocks... before saving, you dont need all of those blocks :~) Otherwise from that, Nice!
Great idea! Done !
Unused blocks deletes blocks still used in custom blocks.
Not exactly, it deletes unused blocks, meaning if a block is in a custom block its considered used. :]
This is what I meant: (it has happened to me)
here