What is the author's style in Prometheus Bound by Aeschylus?

According to Aristotle's Poetics, a drama about an elevated hero who, because of some tragic character flaw or misdeed (a hamartia), brings ruin on himself. While not exactly a flaw, Prometheus's love for humanity can be seen as the element of his character which precipitates his imprisonment, for it leads him to go against Zeus will and challenge his authority. Prometheus exhibits an element of pride (hubris) in his belief that he knows better than Zeus (even if it is agreed that, in his sympathetic attitude toward humanity, he does) and his desire for revenge against Zeus.