Robertsailor. If C-GRUT was dinged. You have 3 good colors to match. I would replace that full side panel. You will then have good pieces of coated fabric to have the paint matched! You can cut a 1” strip with all 3 colors and mail it to,the suppliers requesting for a matched sample returned. Then your only glued seam will be on the bottom. You can cut the fabric with pinking shears and it can look like the joint was originally designed that way.