Color mode
When you select Pixel Color in the Dropper dialog box, you can
choose a color system in the pop-up menu. You can select RGB,
CMYK, or Grayscale.
The Color Dropper converts any color you click to the selected color
system.
For best performance, choose the color system that matches the col-
ors you are sampling. For example, if you sample colors in complex
RGB images with CMYK selected, slight delays can occur because
Canvas must convert the images RGB values to CMYK values.
However, you might want to select a color system that differs from
an image. You might do this to see the effect of a color conversion,
such as RGB to CMYK for printing, for example.