I’m trying to make a slate ProgressBar blue with FLinearColor::Blue, like this: https://github.com/icannotfly/onward/blob/82c4075a5ed9686efc80cb629c3aaeef5ef99a41/Source/onward/Private/hud/DebugBarsWidget.cpp#L141
but it always comes out black, like this: http://i.imgur.com/zVyTczN.png
Even when I try FLinearColor(0,0,1), it still comes out black. What’s going on here?
(this is a repost of Why is my FLinearColor::Blue showing up as black? - UE4 AnswerHub since it’s been three days with no replies)