I just added reflections to URLP's spell effects as inspired by Brogue. I didn't use cell background colors to do this, though, as they still look ugly unless they are used correctly (imho), which is not happening in URLP. Instead, I lerp'd the foreground colors with the spell effect color. It's quite simple really but adds again a nice touch to the game.
I also made the cone effect to look more natural. The ball effect still looks bit silly, however. I better improve it aswell while I'm on it.