For Tron Legacy, the UI was &quot;...written in C++ using OpenFrameworks and wxWidgets&quot;. You can read more about it <a href="http:&#x2F;&#x2F;jtnimoy.com&#x2F;blogs&#x2F;projects&#x2F;14881671" rel="nofollow">http:&#x2F;&#x2F;jtnimoy.com&#x2F;blogs&#x2F;projects&#x2F;14881671</a>