Approval.

hi/exhibition_contributor_roles.php

@@ -0,0 +1,9 @@
+<?PHP
+declare(strict_types = 1);
+$exhibition_contributor_roles = array (
+  'concept' => 'Concept',
+  'curator' => 'Curator',
+  'design' => 'Design',
+  'coordinator' => 'Coordinator',
+  'protagonist' => 'Protagonist',
+);