A race of beings from the Underworld, short in stature with pale skin and large, bulbous eyes. They're long habitation of the Underworld has tied them to the land of the dead, thus some of they're kind have powers over the dead. They have a lot of arcane knowledge, which makes them highly valued as craftsmen.The part about large eyes I put in as an afterthought, thinking "Hey, don't subterranean creatures usually have large eyes?" Then I thought about it more, and realized that that would make them look very different from the typical view of dwarves. Earlier in the process I had imagined them as kind of vampire looking. This conception is closer to Gollum with better posture.
Now this isn't necessarily a bad thing, bujt it's made me realize that changing the races will have consequences beyond just the world of the game. Somebody might come to my game with they're own notions of what a dwarf is and wanting to play that. My dwarves are similar to other dwarves, but also different in key ways. I don't want to turn people off to my campaign.