Hi, it seems that the GTK Stock Items have been deprecated [0] and therefore newer icon themes (for example Adwaita) no longer include icons with the old stock item names (like "gtk-go-down" aka GTK_STOCK_GO_DOWN used for example in [1]). Since xfce-appfinder still use those icon names you see, depending on the GTK settings and installed icon themes, mismatching or missing icons in xfce-appfinder. Thanks. [0]: https://mail.gnome.org/archives/gtk-devel-list/2013-July/msg00000.html [1]: http://git.xfce.org/xfce/xfce4-appfinder/tree/src/appfinder-window.c?id=xfce4-appfinder-4.12.0#n286
Fixed during the gtk3 port, more specifically in this commit: https://git.xfce.org/xfce/xfce4-appfinder/commit/?id=46b20c5c8e933041a93e33aa9ae2e08600818dfc Available on the latest development release (4.13.0).