That's a good suggestion! I'll see if I can find some time to put something like that together :)
In regards to the types, the system is pretty freeform so when making rolls for specific things like stealth you still just roll your DEX. So the types I describe are no concrete classes but more a direction you could take your character in by increasing these stats and making them more capable in, for example, dextrous tasks :)
If you like the idea of more concrete classes you can check out the Character Archetypes supplement, or keep an eye out for my next project The Electrum Archive, which will have a little more concrete classes, including a type of "skills". Cheers!