Originally Posted by catmcclure
Trim 1/4 inch from the edge of the gold. When you add the first border, make it about 1/2 inch larger than you actually want. Put the panel fabric on top as you sew and sew exactly on the outside line of the gold. That will get you a straight border. The Navy blue around the panel is just for seam allowance.
After reading this reply, I see catmcclure is totally right!