BLUE TONGUE SKINKS

My BTS is doing much better she had some mouth rot and was under weight when i first got her. Now she is very active and runs into the sides of the cage hitting her nose on the glass. I was told this would happen and need to place something there so she can tell its a wall. My ideas were a dark window tint the whole thing or 1/2 foam padding running about4 inch up the sides. Any ideas from everyone would be great!

I reckon those fishtank background things are good in this case, adds a nice background image and the skink knows there is glass there.

You can just use dark construction paper on the sides of the tank. Lot easier and cost efficient.