auto-dim-other-buffers broken by recent face changes

[ahihi]

i am using auto-dim-other-buffers to darken the background color of non-active windows. this was working fine with vterm 94e2b0b, but with the latest version, the background color of vterm windows no longer changes correctly. instead the "active" background remains always.

Emacs 28.2, macOS

vterm-auto-dim-bug.mp4

[lrustand]

There was a change in the vterm--get-color function which broke adob, see issue #696, and commit e96c53f. See my workaround here.