docs: Expand opacity docs
authorMatthias Clasen <mclasen@redhat.com>
Fri, 16 Oct 2020 02:39:01 +0000 (22:39 -0400)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 16 Oct 2020 02:39:01 +0000 (22:39 -0400)
commit34625142f4d81a48f1d3ccf246b761d202b3bfbc
tree24327a597fdc2b3723feb2f61fc0443b8e80d2e1
parent6cbf1d037948b7b9fd9f2fe384e04c6daa1aa4d7
docs: Expand opacity docs

Explain the situation with popovers and opacity.

Fixes: #3246
gtk/gtkwidget.c