working with 2 colours Technique lk150 (more information in description)

this is a pain to do,
2 rows are needed for each colour used, so if you are using 2 colours per row, 2 rows become 1
the basic idea is you are layering the colours every 2 rows,
the first row, completed the last row, the second row starts the new row.
I do plan to do some designs that require colours, but for now this is the technique.