I am amused when I see people using the \"Black\" and \"White\" colours as a symbol of good and evil. Sure, it has been used many times (Star Wars, for example, with the Light and Dark side of the Force). But I do not see why everybody sticks with it.
The power of darkness is not necessarily evil. A mage proficient in \'black magic\' (that associated to destruction) could use his \'black powers\' for a good purpose.
It is not the appearance or the nature of the skills one has what align us to either good or evil, but the actions. It does not matter if you are a Paladin in shining white armor, if you mercilessly kill every citizen you encounter you are evil. Or you can be the meanest looking Necromancer, but if you use your skills to aid a village which is being attacked by monsters and do not expect anything in return, you may be conisdered either good or neutral.
That is how I see it, anyway. I just do not like the White=Good and Black=Evil deal at all.