sweater help

So, here are some pictures of that sweater that a few months ago was scheduled for frogging. The color of the Noro inlay was so nice that I just couldn't get rid of the back. so instead of frogging, I did some creative reworking and turned the crazy, oversized dress into a manageable poncho.

A pattern is in the works right now, but there is a bit of confusion on how to do a color chart on a mitered pattern.

To anyone who knows how to do a chart of a mitered panel, I welcome your advice.