Ability to change room icons (not just group icons).

Request:
As a user, I would like the ability to change the default lock and people icons for the rooms where I have admin rights.

Description:
The default icons are either a lock or a person icon and it is repetitive/hard to find the room I need. Being able to change the icon will help users quickly identify the respective room they are looking for using an image instead of having to read through all the room names (room names are usually cut off if you are not in a full screen mode).

Example:
As a user, I am apart of the "HardCoders Chamber of Secrets" room which is private to my development team. We have variations on this room name to include management and various others. Since all the rooms are private, I see a list that has all the same lock icon and the name "HardCoders Chamb...". Having a unique icon will improve the strain of resizing the window to see what room I need and then resizing the window back to the previous state.