Edit home.php code to make change on main blog only?

I realize this probably sounds stupid, but I figured I'd ask.

I’m using Elegant Press’s Chameleon theme on my Multisite main site @ http://www.changeincorporated.org. I edited home.php to create static text below the slider.

However, I’d like to be able to use chameleon theme again on other sites in my multi install, but need to know if there some way I can edit home.php to make the static text only appear on my main blog, not on the subs? I’m sure there is another work around as well – perhaps by specifying in settings>reading that the homepage of my multis be something other than “latest posts”, but I’d like to know if there is a way to code it as well.