Diagonal Box Stitch In Color

WIP--Making the Diagonal Box Stitch in Color.  In this project I'm using Lion Brand Vanna's glamour which is a fine yarn category (2).  The crochet hook I'm using is 3.75 mm Boye aluminum hook. I change the color of yarn in each row, alternating the two colors.  I do not break the yarn to start the new color.  I simply leave one yarn at one end while I work on the other color at the opposite side.