Changing colors with script in non-movie clips

Hi,
I hope I can vocalize this right, it’s a bit of an oddball question, which I think I may have to go in and do the hard way, one at a time.

I have a large deal of fla files that (among many, many other problems) are using a black 0,0,0 RGB for fills and lines. I need the minimum RGB to be 15, 15, 15 and I was wondering if there was any way to automate the process of making these changes. Instead of going in and chaging each fill one by one (which I’ll do, but it would be painful) I was hoping there was some way to insert a tidbit of code and have it all change automatically.

This would be similar to creating a batch in photoshop, automating the change of the black from black to a slight grey(with color adjust, for instance), and letting it do it’s thing for the thousand odd pictures. While I know the process would have to be completely different for vectors, I’m hoping an example like that clears up the problem a bit.

All right, any help you guys can offer is greatly appreciated. I honestly haven’t the slightest where to start.
-thebulfrog