Updated translations.

imports/i18n/data/en.i18n.json

@@ -137,7 +137,7 @@
   "avatar-too-big": "The avatar is too large (__size__ max)",
   "back": "Back",
   "board-change-color": "Change color",
-  "board-change-background-image": "Change background image",
+  "board-change-background-image": "Change Background Image",
   "board-background-image-url": "Background Image URL",
   "show-at-all-boards-page" : "Show at All Boards page",
   "board-info-on-my-boards" : "All Boards Settings",