No man look,
I tried to modify a ground to the green color (look the first post). But I gave me critical error, so I couldn't log in. You see, the color I need is just 1 color, like your gray walls in the screen. Can you change the color of walls from gray to green and give me the file that will change my walls also to this color? Or if you don't know/can't change the walls to green color, gray is good, too (green is better, but gray is good, too).
Waiting for your response, CriticalError.