Color Stool Will NOT Work Properly

Okay, so my problem is that the color Stool will not work for me. I can’t color or anything! I have no idea what the problem it. Please help me!

Click a prop! ragdoll white room in gm construct?

I tried…will not work.

Is it set to white? :v:

Hold on, I am going to go test a few things in-game with it.

…and it won’t work still.