What are counted as 3rd party programs?

I'm using **Steam overlay** and **Corsair Utility Engine** during game, can they get me banned? I tried to ask from support, but they just sent me an automated reply, which really didn't answer my question. What do you guys think, is the banhammer gonna smash me? I'm pretty sure they don't give me any unfair advantage, I just want to stay in touch with my Steam friends when playing League, and I really enjoy flashing LED lights on my keyboard. Sure, pink light makes me wind QWER keys easier on dark room, but that's about the advantage the program gives me.
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