add search/limiting filter for fonts containing specified characters #74
Description
Sometimes you need to pick a font for some text that requires umlauts or more
exotic characters.
There is no way to limit the selection of fonts to only those that contain all
characters needed to render the text.
Feature should be available using "Advanced Search" and if possible also using
a toggle when using the "custom text" as a shorthcut avoiding to search first,
create a (temporary) collection with matching fonts and limiting the scope to
the collection
Original issue reported on code.google.com by lohma...@googlemail.com on 2 Jul 2012 at 12:26