Missing dependency on gnome-icon-theme
Not sure if this is the right place to raise this, but in Ubuntu 20.04 (and 22.04) WSL2, folder comparisons did not work for me until I installed gnome-icon-theme
(error displayed was gi.repository.GLib.GError: gtk-icon-theme-error-quark: Icon 'folder' not present in theme Adwaita (0)
). So I think this package should be a dependency of meld.