Just the names in the main notebook. I'm not an artist so I try to start with a name and build off of that. When I write them down I like to have a vague sense of what the character might be.
Although the intent I had with the character when I wrote it down isn't iron clad. For example, The Burn and Crisis were heroes in my mind for years until I actually designed the characters on heromachine.
Volkssturm. (The People's Storm)
Volkssturm was one of the last superhuman efforts of the Nazis. His super strength, flight, and control over thunderstorms were powered by the collective consciousness of the German people. He had the possibility of being an incredibly powerful being but as the German Army fought a losing war, the will of the people suffered and his power disappeared.
Subject: Re: JoeFrankenstein's House of Rogues 
