True False 6 12 True False 0 none True False 6 12 True False True Plain look, do not use Themes True True False 0 True default_persona False True 0 Pre-installed Theme (if available) True True False 0 True own_persona False True 1 True False 12 True Own Theme True True False 0 True no_persona False True 0 Select Theme True True True False False 1 False True 2 True False Firefox Themes False True 1