This page provides advice on using
ColorChecker and
ColorShifter.
We'll start with an image of the flag of France.
How can we change this into the flag of Italy?
Well, first let's start by running the ColorChecker; this will
tell us about the colors that make up this image.
What we see is that over 90% of the color in this image is
made up of three colors:
| Color | Sample | Percentage |
| FFFFFF | | 33.1 |
| 002E7A | | 30.9 |
| DF0028 | | 30.9 |
Now to make this into an Italian flag, we have to change the blue to
green, so it looks like we need to focus on color #002E7A. We'll
change this to a #006321.
So run the ColorShifter with

So in order to change the blue to a green, we'll have to do not just
color #002E7A, but the colors close to that color. For our green
color we'll