Originally posted by mrtn
... and tell what graphics program you use? ...
It looks like photoshop, I'll asume this until you bloody well tell me that it isn't.
This pic is the palette from the Medieval infantry. The first colour, the magenta, is the transparency colour. You have white as transparency.
The rest of that row, all the greens, are the shadows. It doesn't matter what colour green it is, the important thing is where in the row the colour is situated, darker shades are to the right.
The last row, the blues, are the civ colours. You just have blacks here.
When you create a new palette (which I think you should, yours are messed up), you can choose custom, and click that. Then you'll get a palette which will probably be greyed out, except for the first colour white, and the second black. Double click these, and make them magenta (255, 0 255) and green (0, 255, 0) instead.
You can also note the RGB numbers for all your shade colours, and place these in the appropriate place (the last row) in the customized palette.
It also seems as if you have used anti-aliasing sometime, as you have different shades of magenta in the palette. This will probably give your unit pink fringes. In the (new) palette you can double click these and change them to some other ugly colour (for example yellow (255, 255, 0)) and later (when you only have one magenta in the palette) fill these with magenta (with the bucket tool, anti-aliasing and contigous off and 0 tolerance).
Hope all this helps.