So, with the GG sale yesterday I successfully formed a fraction to press a friend into buying CK2 and explained it to him over skype in multiplayer. Yet one question of him struck me, why is there no mapmode showing you demesne and direct vassals? Especially since he was playing as Lower Lorraine, which contains quite a few de jure duchies and rivers, making that thick black line quite hard to see. Maybe make in this map-mode your own demesne green and vassals blue or green with stripes? It would clear up some things especially with these rather unknown and antique duchies.