[gtk/wip/otte/listview: 22/24] css: Add some CSS for sections

[Benjamin Otte <otte src gnome org>]

commit 411def9f3489a817e12bf6e447b017a30401b242
Author: Benjamin Otte <otte redhat com>
Date:   Sat Feb 26 04:01:47 2022 +0100

    css: Add some CSS for sections
    
    Does two things:
    
    1. Makes sure I find them
    2. Makes sure some designer will notice they need restyling

 gtk/theme/Default/_common.scss | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/gtk/theme/Default/_common.scss b/gtk/theme/Default/_common.scss
index 27e75a2d52..2038f54a0c 100644
--- a/gtk/theme/Default/_common.scss
+++ b/gtk/theme/Default/_common.scss
@@ -142,6 +142,11 @@ gridview {
       margin: 12px;
     }
   }
+
+  > section {
+    background: hotpink;
+    padding: 6px;
+  }
 }
 
 coverflow cover {
@@ -3316,6 +3321,11 @@ list {
   &.separators:not(.horizontal) > row:not(.separator) {
     border-bottom: 1px solid $_treeview_borders_color;
   }
+
+  > section {
+    background: hotpink;
+    padding: 6px;
+  }
 }
 
 row {