this is old deps Reproducible: Always
Good catch, as far as I can tell from git, gnome-themes-standard hasn't needed any engine from x11-themes/gtk-engines since version 3.5.90. + 05 May 2014; Alexandre Rostovtsev <tetromino@gentoo.org> + gnome-themes-standard-3.10.0.ebuild, gnome-themes-standard-3.12.0.ebuild: + gtk-engines hasn't been needed since 3.5.90 (bug #509560, thanks to Jura).