In the beginning when you are selecting what colors to bring in - select a
preview and put in a low number such as 3 then click the number up by 1 and
watch where the color is added to the design. Decide if you like that addition
and move forward. If at the next color you think it could be the same as a
previous color just make a note of the number by the check box.
After you apply then you can go in and change the colors.
