Honestly, I did play it through as far as the monster, but when there where long stretches of darkness it started getting too hard to figure it out. I kinda have a hard time with contrast personally so it might not be an everybody thing. Plus I would hate to say the darkness was too dark cause ya know, thats the point of the game. But yeah, the lights glow didn't help as much as I would have liked and the only thing I can think of is that its either not bright enough or maybe the radius doesn't extend enough..