Designer is a vague term which usually implies the task of creating or of being creative in a particular area of expertise. Often times it is used to reference someone who draws or in some ways uses visual cues to organize their work.
... treaty in 1538, he again allied himself with the Ottomans in 1542. In 1543 Charles allied himself with Henry VIII and forced Francis to sign the Truce of Crepy[?]. Charles ...