I can tell you because I've made the same mistake, it takes too much space/time and effort to use a seperate .psd for each color change. Try making the layers in the colors you need, then use
- Code: Select All Code
id(red)
id(blue)
id(green)
id(yell)
button id(changecolor) modify(red,blue,green,yell) aclaswch
The names in the parentheses can be names of your own choosing, of course...