In the download file is a picture. There is no color chart. If I were to stitch this out I would use the picture as a guideline as to what colors to use from my supply

That happens a lot when I download designs. Usually there is a chart, but not for freebies. When I download a design the colors are always wonky for me. So I've learned to save a jpg of the design too so I have what the original colors were. I use the snipit tool on my computer.