The points made about both ux- and gui- make sense. As does using something like desktop- which could be confusing for mobile, wearable, or other stuff with graphics. Not sure if length is of concern.
One that is in use now that has not come up is gfx. That is used now for like media-gfx. Not sure if it would be confusing to have its own category gfx-libs gfx-tools gfx-apps Though gfx and gui are pretty much the same. Given that there is a wikipedia page for GUI. gui-* may be the most clear to all. https://en.wikipedia.org/wiki/Graphical_user_interface Maybe just UI but that maybe to generic. https://en.wikipedia.org/wiki/User_interface The wikipedia page on UX would make it not suitable https://en.wikipedia.org/wiki/User_experience -- William L. Thomson Jr.
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