Current questions and answers regarding the map editor.

THANK YOU, and I wanted to ask if it would work for a boss?

Added after 43 seconds
What was black turned white, but it didn't help. :-(

Edit it in a more serious program, like Photoshop or Paint.NET.
The color should be "transparent." And change not what already exists, but what was there, or erase the white color until it's "gone." In Photoshop, you can control alpha channels however you want.