Now that I am doing the backstitching on this project I wish most profoundly that the different colours used in the backstitching were in colour on the chart! They sometimes interweave very closely and it's a bit of a puzzle sorting out what colour goes where. Colour coded backstitch on the charts would be a HUGE help! Why don't the designers do it? Ok, if you are using a single colour on the backstitch it doesn't matter a fig, but when you are using multiple colour backstitching, it makes a lot of sense, imo.
