,  I have added the newline sign back in, you can see it when hovering over the block. Also, I have made blank-only changes darker so hat they are now easily visible.  If you still want to change the colors, then you have to set the insert/delete styles (wDiff.styleDelete and wDiff.styleInsert). wDiff.coloredBlocks refers to moved block coloring (previously rainbow colors, now all-gray).