Actually defined the 'font' resource, connecting it to the loader.

game/gbe/resource.py

 define_resource_type("graphic", "graphics/", load_image)
 define_resource_type("audio", "audio/", load_audio)
 define_resource_type("json", "data/json/", load_JSON)
-
-
+define_resource_type("font", "fonts/", load_font)