Holiday Harmony Tree Skirt a Cross Stitch Kit by Dimensions

Do you need to buy fabric and sew it on as a backing on the finished project? Do the instructions include how to do this? Thanks!

Hello, I am looking for help please. I purchased a tree skirt pattern off eBay for my grandmother from a person who guaranteed a full kit. Upon arrival she found the color pattern was actually cut out from the pattern and cannot even begin to stitch without it. She is a veteran stitcher and it saddens me I spent a larger amount to give her something she enjoys as a hobby. It is the needle treasure ornament tree skirt patter. Is there anyone than can help me with the color padding coding? The seller has been very negative and doesn't want to take responsibility for their negligence. We have all the strings and format, but don't know what color to match to symbol. Please help