[Gameplay] Textures are a bit darker than normal

So in the game is just played in the PBE just a few minutes ago on my PBE account Irokus. I noticed that champion textures and the minions were a shade darker than normal. I was playing Azir and noticed right away that his coloring was rusty yellow instead of the shining golden he usually is. I don't know if this was intended, my settings, or a bug that just showed up but I thought to report it anyways. I've also included a screenshot of the way it looks on my screen.