Start with anthropology fieldwork among the redscale barbarians of the Red Wastes. No, cancel that: the redscale dragonics ate the researchers. Restart with a dig into the myths and aspirations of dragonics influenced by chromatic dragons and the Three. The dig is dicey, but we expect to find monster stats, hierarchy options, adventure hooks, and player character options including feats, talents, and maneuvers.
Kroma Draconics is the ninth installment of 13th Age Monthly Vol. 1. You can buy it as a stand-alone PDF, or purchase the collected Volume 1 to get all 12 issues plus the Free RPG Day adventures Make Your Own Luck and At Land’s Edge!