Today I was just randomly going through the element search menu and found an element called ADD. The logo had a black background and I couldn't place it anywhere. I couldn't set it as a ctype for any element either. I have a picture of the search menu with the element below. I also couldn't find anything on the forums or anywhere about. Does anyone know what this does?
That's a deco tool. You can even place more elements in the Deco menu, with Lua.
Well, you maybe could manually it would just be hard and pretty sketchy. If you add it to the menu, but leave the element itself not creatable, and have the script include a registered function that if the tool is the element selected for drawing (IDK if you can do that, but I think it's possible), run the tool's function for every pixel within the cursor's boundaries. It could be done, but it would be laggy and pretty crappy.
Uh. That's not what he was saying. He was saying that you can't add TOOLS to TPT.
I know all that, I probably do a lot more Lua scripting than you anyways.