@romildo, thanks for your PR! By analyzing the history of the files in this pull request, we identified @clemensmanert and @armijnhemel to be potential reviewers.

I'm noticing that almost all packages in pkgs/desktops/mate are using the same source, "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz", but there are currently 4 different (major, minor) versions being used (atril-1.19.0, caja-1.18.0, mate-common-1.18.0, mate-desktop-1.18.0, mate-icon-theme-faenza-1.18.0, mate-icon-theme-1.18.1, mate-terminal-1.18.0, pluma-1.18.2).

I think it would make sense to refactor it so that a single version is used for all the packages distributed by this Mate source to minimize the dependencies.

1.19.x seems to be development versions. Only atril is using it. It has been added by someone else. The other packages are at 1.18.x, which is the stable version. Some of them receive minor updates. Therefore the minor version x is not the same for all of them.

So I agree to use the same major stable versions for the mate packages, with the latest minor version available for each of them. Therefore atril would be downgraded to version 1.18.0.

I want to (slowly) add more mate applications until the desktop is complete.

Oh I actual misread the download URL, I thought all packages were built from the same source tarball, which is not the case, sorry for that.

In that case it's not really bad with the versions, probably just updating them to v1.19 when it's out would be nice.

I tested the editor btw, works without problems (except some GTK messages on stdout regarding themes, but I think that's pretty standard to have).

@Mic92 Why a dependency on gnome3.defaultIconTheme is needed?

Should every application with icons depend on it?

Also when should gnome3.defaultIconTheme be prefferred over hicolor_icon_theme?