lazarus and the one you're currently using, for instance.
Leslie curero is an example of perhaps too much darkness.
Playing with light can have a lot of aesthetic use, but too much can, sometimes, be detrimental.
I'm not saying they are bad, if I look closer at them, they certainly work, but at the initial first glance they don't make me want to look closer. And that's probably a bad thing.
Edit: Lorenzo Sirus (the red one) is very good, though, as a more positive example.
One of these days, there will be a clever, stylish and/or funny signature here.
This is still not that day, however.