My method is probably not very professional but works for me. btw I use Photoshop CS6.
Start with creating two palettes - one for pinks only and one for greens only. Something like this:
1. Select the area you want to change into faction colors.
2. Make a new layer with the selected area
3. Duplicate the layer to the new file
4. Change the image mode (of the new file) to the indexed color. In the popup window choose Custom palette and find one of those two palettes you created. Photoshop will change and remap colors automatically.
5. If the result satisfies you copy the selected area again and paste it into the layer you created in 2nd step.
6. Repeat steps for all green/pink areas.
7. When done you will have to flatten the image and change to indexed color. Of course, you will need full palette containing all the colors to properly transform the image to the indexed mode.
Bookmarks