I guess I could keep the tile in place an just kind of put black burlap over the tile and tuck it in the brackets as I go. I don't know what else to do that would still look good. The other thing seems to be hard back wall (green wall) to hard front 10' viewing window to control room. I am thinking about trimming with acoustic foam all around the window (not the glass) 2' wide unless something else may have a better idea.