Yeah depending on the character's color seperation pal editing can be easy or frustrating.
You could always do stuff like selecting every shade of one color on a character like say, blue...
and hit the swap blue and green or red and blue swap.
Also there are other options down there to play with.
But if you want to say turn ryu's Gi purple that isnt too hard.
You can zoom in and select the color (but make sure you click that color in the box after finding it so you dont have more the one box selected)
Also when saving just make sure you give the act file a good name.
Now to show it off all you do is over on the left in the main fighter factory window it shows what palettes are open.
Now you can open your pal and add it to that list for a moment.
Then make sure you hit apply changes to palette and move over to yours.
You should see your new colors, if not hit another pal and hit yours again.
Now just go to the animations, go over to the stance and hit the little catus and it will bring up a gray window with the character's stance animation in your new colors, hit save and it will make a gif for you.
Upload then post and your all set