What is "aglaophon"

Aglaophon ( Gr. ) was an ancient Greek painter, born on the island of Thasos. He was the father and instructor of Polygnotus. He had another son named Aristophon. As Polygnotus flourished before the 90th Olympiad, Aglaophon probably lived around the 70th Olympiad, that is, around the late 6th or early 5th century BC. Quintilian praises his paintings, which were distinguished by the simplicity of their coloring, as worthy of admiration on other grounds besides their antiquity.