Driver Madness

So I just decided to edit some textures into the game by exporting them, editing the textures then import them back in but when I import them back in the colors look very weird like green has turned into yellow and the unedited textures turn purple? I don't know why this is happening but it is getting really annoying . Can the developer or someone atleast help me out or fix this bug because it is getting on my nerves.

Are you importing to a paletted texture? If so then those require special care to import properly (they are kind of a pain to work with). Also, what version of the texture editor are you using?