I put the restart button in the world and a technical message came up (It was too fast for to remember what it said, but I think sounded like lowering the quality of something) and now the sky (a sphere object sky) is darker. I've tried increasing the light, but that only seems to make half of the sky brighter. I've removed the button but that doesn't seem to help (And now if I put the button back in, I don't get any message). What can I do to get both sides of the sky lighter or to undo what bringing the restart button into the game did?