[gnome-builder] theme: style needs-attention for dzltab

[Christian Hergert <chergert src gnome org>]

commit 78ace0bcd360fc98b65d9f2f0c783e4f60f3ef15
Author: Christian Hergert <chergert redhat com>
Date:   Mon May 6 13:21:51 2019 -0700

    theme: style needs-attention for dzltab

 src/libide/themes/themes/shared/shared-editor.css | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)
---
diff --git a/src/libide/themes/themes/shared/shared-editor.css 
b/src/libide/themes/themes/shared/shared-editor.css
index e1fdc4432..035df11db 100644
--- a/src/libide/themes/themes/shared/shared-editor.css
+++ b/src/libide/themes/themes/shared/shared-editor.css
@@ -97,7 +97,12 @@ ideeditorsidebar .flat-menu-button:hover {
 
 /* utilities panel buttons */
 ideeditorutilities dzltab {
-  background: @theme_bg_color;
+  background: none;
+  background-color: @theme_bg_color;
+  background-image: none;
+  background-size: 6px 6px, 6px 6px;
+  background-repeat: no-repeat;
+  background-position: 3px 3px;
   padding: 6px 8px;
   margin: 0;
   border-style: solid;
@@ -118,6 +123,14 @@ ideeditorutilities dzltab:last-child {
   border-radius: 0 0 3px 3px;
   border-bottom-width: 1px;
 }
+
+ideeditorutilities dzltab.needs-attention {
+  background-image: -gtk-gradient(radial, center center, 0, center center, 0.5, 
to(@theme_selected_bg_color), to(transparent)),
+                    -gtk-gradient(radial, center center, 0, center center, 0.5, to(rgba(255, 255, 255, 
0.769231)), to(transparent));
+  background-size: 6px 6px, 6px 6px;
+  background-repeat: no-repeat;
+  background-position: 3px 3px;
+}
 ideeditorutilities dzltabstrip {
   margin: 5px;
   border-style: none;