Blue Monkey
Archon Without Portfolio
Don't try to remake the palette if one background color is enough! Use GIMP's select by color tools:
- Open the indexed file.
- Set the color you want the background to be as the bg color in the tool palette.
- Select the whole bg of the icon using the Fuzzy Select tool - it will only select one contiguous region. You may need to adjust the sensitivity.
- From the Edit menu choose Fill with BG color.
- Repeat for any other regions you want to become one color. Including the magenta region.
- Save. You should now have a reworked pcx with the same palette as before.