[gtk] Adwaita: Fix round titlebar button outline radius

[Timm Bäder <baedert src gnome org>]

commit 434d32bf9564aff1fbf5ab67834a362a1263b173
Author: Timm Bäder <mail baedert org>
Date:   Wed Aug 7 18:49:10 2019 +0200

    Adwaita: Fix round titlebar button outline radius
    
    Fixes #2073

 gtk/theme/Adwaita/_common.scss           | 1 +
 gtk/theme/Adwaita/gtk-contained-dark.css | 2 +-
 gtk/theme/Adwaita/gtk-contained.css      | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 51dfcf16d2..fa16354fee 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -4517,6 +4517,7 @@ button.titlebutton {
 
   &:not(.appmenu) {
     border-radius: 9999px;
+    -gtk-outline-radius: 9999px;
     padding: 6px;
     margin: 0 2px;
     min-width: 0;
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 984b2fa4a8..c5a2e3d360 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -1958,7 +1958,7 @@ messagedialog.csd decoration { border-radius: 8px; box-shadow: 0 1px 2px rgba(0,
 
 button.titlebutton { text-shadow: 0 -1px rgba(0, 0, 0, 0.834353); -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 
0.834353); }
 
-button.titlebutton:not(.appmenu) { border-radius: 9999px; padding: 6px; margin: 0 2px; min-width: 0; 
min-height: 0; }
+button.titlebutton:not(.appmenu) { border-radius: 9999px; -gtk-outline-radius: 9999px; padding: 6px; margin: 
0 2px; min-width: 0; min-height: 0; }
 
 button.titlebutton:backdrop { -gtk-icon-shadow: none; }
 
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 5dd77a0378..aab8b2cd11 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -1974,7 +1974,7 @@ messagedialog.csd decoration { border-radius: 8px; box-shadow: 0 1px 2px rgba(0,
 
 button.titlebutton { text-shadow: 0 1px rgba(255, 255, 255, 0.769231); -gtk-icon-shadow: 0 1px rgba(255, 
255, 255, 0.769231); }
 
-button.titlebutton:not(.appmenu) { border-radius: 9999px; padding: 6px; margin: 0 2px; min-width: 0; 
min-height: 0; }
+button.titlebutton:not(.appmenu) { border-radius: 9999px; -gtk-outline-radius: 9999px; padding: 6px; margin: 
0 2px; min-width: 0; min-height: 0; }
 
 button.titlebutton:backdrop { -gtk-icon-shadow: none; }