So the "bleak Colors" might be a settings issue.
I tried the x32 version on my x64 win10. It didn't solve any problems but it created a few :P
I'm still unable to get the "minigame" to work so I guess the INT-stat is a waste for the time being.
You need to hold Ctrl while hammering the heated ingots I think, not sure, and maybe also some points in intelligence?
I have tried to place all points in INT and hammering while press in CTRL, noting happens.
Right now, the implementation isn't complete so you won't see much result.