Drawing color outside of a specific surface

B

bark24

Guest
Hello everybody,

1. I hope you can understand what i want to know, because english is not my native language.

2. Is there a way to fill the area outside a surface with a specific color?

In Pictures:
My Game"at the moment looks like this:
ausgang.png

This is what I want my game to look like:
ziel.png

The red outlined square is my surface.
 
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