Feature Request: Create Video Contact Sheet like smplayer/mpc-hc can

[Pentaphon]

Smplayer/mpc-hc and other players have the ability to create video contact sheets (thumbnail/info images) from videos like the one below. Please add this functionality to Celluloid as well.

[gnome-mpv]

Does the contact-sheet script in this repo do what you want?

[Pentaphon]

Does the contact-sheet script in this repo do what you want?

I think so but celluloid would need a simple GUI to control it as well. I think it would also need to be customized and have each contact sheet say "celluloid player" on it.