[chriswarbo]

Yeah, it took me a while to discover that it was removed from KWin. (I eventually ended up reading the sources). It didn't help that KWin also does 3D effects, so all of my Web searches for "shading" were returning results for "shader" :-(

[pjmlp]

Oh, gone from KWin as well? Yet another reason to stick to XFCE I guess.

[bjoli]

It is gone from kwin because it is really hard to do in Wayland apparently.

The setting is still there (or was there until really recently).