This reverts commit c0c027c608d0aa1c547a2a82bd3ce6b84bb83b83. Because for some reason animating external opacity and position is still incurring internal repaints, which disables offscreening and makes fading of overlapping actors look wrong. `ON_IDLE` should be fixed in mutter before it is used (in boxpointer at least) again. Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/2270
GNOME Shell
GNOME Shell provides core user interface functions for the GNOME 3 desktop, like switching to windows and launching applications. GNOME Shell takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a visually attractive and easy to use experience.
For more information about GNOME Shell, including instructions on how to build GNOME Shell from source and how to get involved with the project, see the project wiki.
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