See my comment from 3 years ago. Google Talk uses Green for Available, Yellow for Away/Idle, and Red for Busy/Do Not Disturb. If your contacts do not use these statuses in that way, you can always change the Icons.plist to reflect your preference. I will not make those changes because I want this to be true to the Google Talk client.

I made this modification on PURPOSE. Google Talk uses these icons for those reasons. Green is Available, Yellow is Away/Idle, and Red is Busy/Do Not Disturb. Because really, if you are away and if you are idle, it's the same thing, you are not going to answer because you are doing something else. Busy is the only real status that you need to know when NOT to contact anyone, because you will be interupting.

Very nice. Do you have a link to the rest of the folder icons you created?

Very nice! All menubar icons should use either black, grey, or white as colors and blue if they require your attention. This is perfect!

My first .plist file did not render properly.
Basically, I went into the growl preference pane, looking for growl helper app, and looking for plugins. I used plain and modified it to be taller, 101px, instead of 51px. Just copy the Info.plist and change any occurance of plain to iphoto.
Sorry.