Talk:Car Mastery/@comment-78.92.182.218-20160120192420

Can someone tell me what the little blue + yellow triangles mean in the Challange selection in Mastery? For example in the very first Dodge Dart GT Mastery the 2nd, 4th, 5th, 9th, 10th, 13th and 14th challanges are marked with them, and the rest are not. All challanges (for all cars) have these.