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.
... February 1944 he was betrayed and Gestapo arrested him.
Eventually Jean Moulin convinced Armee Secrete, Comte d’Action Socialiste, Francs-Tireur, Front National, and ...