if you like the green border keep it- if you don't like it then cut it off- it looks as if you have room around the catapiller to cut a square- don't try to line up with edges/frame- find the center of the block and measure from the center to cut your square...and just an FYI---seldom are panals square- they always seem to be a bit (off) because of the printing process--manufacturing- after you use a few of them you get used to (fudging) cutting them to fit your needs