Umm, Michal, what has the icon of St James, Brother of the Lord, have to do with the thread?
Both this and St. Leo's icon contain anachronistic vestments.
Is there something wrong with St. Leo's icon besides vestments?
The triple crown, which dates in its earliest form from the time the Roman papacy was beginning to grow in temporal power, speaks not of Orthodoxy, but of post-schism Rome, or, at least, a Rome soon to schism from Orthodoxy. St James in Byzantine vestments has no such overtones, as the Church was undivided during his time.