10.11.7.7 (beta) - Gaps now show real cover art for books (bibliography and subject lists), music
(MusicBrainz discography and artist works), and series completion episodes (TMDB, TheTVDB, and
TVmaze all supply a still where they have one), instead of a blank thumbnail; a cover that fails to
load falls back to the blank placeholder instead of a broken-image icon. The "Not interested" action
has its own icon instead of borrowing an unrelated one, and the Resolve control sits on the same
line as the rest of a row's expanded actions instead of dropping to its own line.