Tributar
An image—often called an avatar—which represents an online user, often on some kind of social network or application, which serves as a tribute to some person, cause or idea. It may be permanent, or only used for the duration of a special event, or while an issue remains topical.
During the Iran Election crisis, the TV anchor had been using a Tributar depicting a Neda, a fallen protester. Later he switched to a Tributar showing himself as a child, sitting on his late father's lap.