The Mx toolkit (formerly known as the Moblin UI toolkit) is a collection of widgets for applications using media-libs/clutter. In turn, Mx is starting to get used by some Gnome applications; in particular, it is used by evolution-2.32.1 with USE=clutter. It is probably time to add media-libs/mx-1.0.4 (the latest stable version of the toolkit) to portage. Some relevant links: former package homepage (obsolete): http://moblin.org/projects/moblin-ui-toolkit current package homepage: none yet current git tree: http://git.clutter-project.org/mx/ main developer's blog: http://blogs.gnome.org/thos/
Created attachment 254701 [details] proposed media-libs/mx-1.0.4.ebuild
x11-libs/mx currently resides in the GNOME overlay.
Looks like is in the tree for some time