Add power-level information of users in the member list
Right now, there's no power level information available in the member list of any room. So we can follow a design similar to the room and add a dot above icon indicating power level. We can also add text like "Administrator" or "Admin" in front of user id. A study of other apps for implementing a similar concept:
1)Riot Riot has star icons above user pic to indicate power level, and on hovering it shows power level in text also.
2)Quaternion No visual indication of power level
3)WeeChat (Command line App, so they just have different colours for user names showing different power level)
4)Nheko Nheko also does not have anything to differentiate between users of different power level.