"Just because my element isn't named after Indiana doesn't mean I can't name myself that."

"Indium is not named for India or Indiana or any other piece of geography. It is named for the strong indigo-blue spectral line that was the first evidence of its existence." From this alone I could of made his colour scheme all purple, but that'd be too easy. As it turns out, indium is used in liquid crystal displays (aka LCDs), so that's why his shirt is all multi-coloured. ...I did make his hair purple though, mainly because I think it looks cool.

Moving on to personality, Indiana is basically the average of his friends, while Anton is outgoing and talkative and Stann is ok with helping from the side lines, Indiana is sometimes one, sometimes the other, as can be seen from his choice of hobbies/careers. Usually he's taking a back seat as one of Anton's backing singers, but sometimes, in those rare cases the Apartments' electricians can't work out how to solve a problem, Indiana will chip in and give them some pointers, which is another reference to LCDs (as well as a reference to how, like most of the elements in this part of the table, indium can be used in semiconductors).