Yes I know how that works, However that would make any text of the same color transparent also, Which is why I said it isn't a good solution.
It's ok if you know that your own windows theme, And mIRC colors don't use that RGB value, But it wouldn't be acceptable for a mass distributed script.
As I said before, On mircscripts.org there is already a DLL (mFUNC.dll) which supports that kind of transparency.
