Example:
	ocean_misty_pikachu_lesbian1.jpg
	group_character_character1_theme1.png


Keywords:
	each word in a file's name is a keyword.
	_ and numbers are ignored as keywords.


Index numbers:
	The index number can be placed either after the characters,
	or after the themes
	exception:  binocular pics start with their index number


Groups & places:		(needed for pic sets where some might have NO themes)
	ocean


Themes:
	lesbians
	tied
	tentacles
	shota				(only applies to straight-shota scenes with a woman, not solo pics)
	loli				(ignore misty.  only applies when the girl LOOKS young, because context won't be apparent)
	masturbating
	sleep
	milking
