This is very, very cool. One request: would you consider making the color thing not part of the license but just a "polite request"? I understand where you're coming from and have no problem complying, but it's a little confusing and unclear what the legal implications of the rule might be. For example, what if someone forks it and changes the design, getting rid of the border around the pic entirely? I think your rule is very reasonable, but would be better enforced through the honor system, not the law. (Or edit it to make it clear it's not part of the license.)

Also, I personally found it surprising that a second click on one of the social links (e.g. Github) opens the full page on Github. I expected it to be a toggle where the second click would make the Github tab disappear. Not sure if that's just me, but maybe a separate "pull out" or "full window" icon you can click would be more intuitive.