Created attachment 853526 [details] Borderless door hanger UI Description of problem: Door hanger ui does not have a border Version-Release number of selected component (if applicable): 29a1 (Jan-17) How reproducible: Always Steps to Reproduce: 1. Open about:home 2. Click on the nightly box in the address bar Actual results: Door hanger does not have a border Expected results: Door hanger has a border Additional info: HTTPS info, geolocation, mixed content blocking, blocked, missing, or disabled plugins are several other ways to produce a door hanger UI in Firefox.
Yes, I can reproduce it. Also "$export GTK_DEBUG=all; firefox-gtk3" shows such issue and unpainted areas.
The wrong background color here is sButtonInnerDarkBorder.
Looks like we have to pick up a different element to get those colors, because gtk3 theme has transparent border colors.
Well, the doorhanger background is rendered by sMozWindowBackground so I guess we can use it for the border too.
Movig upstrem - https://bugzilla.mozilla.org/show_bug.cgi?id=978172