SUMMARY:

    Wishlist: To be able to specify which data to index with a "filters"
    and/or "mimetypes" option

POSSIBLE USE CASES:

    To index just audio (by mimetype) by giving

        Mimetypes: audio/* 

    or just (by file extension) images

        Filters: *.jpg,*.jpeg,*.png 

ADDITIONAL INFORMATION

    This is the inverse of the "exclude filters" and "exclude mimetypes"
    options in .config/baloofilerc. There seems to be no way of indexing
    just a certain file type.

    There's a potential knock-on effect to the Dolphin search prompts,
    some clever footwork may be required not to offer, for example,
    searches of "images" if only "audio" has been indexed