HiDPI migration: desktop environment issue

[Jerome BENOIT <sphericaltriangle@rezozer.net>]

Hello, I am currently migrating to a HiDPI box (akda Retina box).

Since the arrival of GNOME3, I have used Xfce as an alternative to GNOME[2]:
I have been happy so far with this choice. Right now, I migrating to
a retina box: it appears, unfortunately, that Xfce support for HiDPI is low.
small (if not tiny) icons there, big fonts here; and so forth.
I have tried to fix it to stick to Xfce; after all Xfce is lightweight.
But the issue is that X is not yet ready to manage HiDPI properly:
a lot of tweaks are needed to get something almost readable.

I read that Cinnamon and MATE, both former clones of GNOME[2], have HiDPI in mind:
is there any other possibility ? which one is the best in terms of weight and HiDPI support ?

Thanks in advance,
Jerome