separate linked buttons in headerbars

common/gtk-3.0/3.20/gtk-dark.css

@@ -1115,6 +1115,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/gtk-darker.css

@@ -1114,6 +1114,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/gtk-solid-dark.css

@@ -1115,6 +1115,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/gtk-solid-darker.css

@@ -1114,6 +1114,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/gtk-solid.css

@@ -1114,6 +1114,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/gtk.css

@@ -1114,6 +1114,9 @@ window.csd > .titlebar:not(headerbar):backdrop {
     border-color: rgba(82, 148, 226, 0.65);
     background-color: rgba(82, 148, 226, 0.65); }
 
+.primary-toolbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), headerbar .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child), .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar):not(.stack-switcher) button:not(:last-child):not(:only-child) {
+  margin-right: 1px; }
+
 .primary-toolbar .linked:not(.vertical):not(.path-bar) > button, headerbar .linked:not(.vertical):not(.path-bar) > button, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:hover, headerbar .linked:not(.vertical):not(.path-bar) > button:hover, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:hover, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:active, headerbar .linked:not(.vertical):not(.path-bar) > button:active, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:active, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:checked, headerbar .linked:not(.vertical):not(.path-bar) > button:checked, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:checked, .primary-toolbar .linked:not(.vertical):not(.path-bar) > button:disabled, headerbar .linked:not(.vertical):not(.path-bar) > button:disabled, .titlebar:not(headerbar) .linked:not(.vertical):not(.path-bar) > button:disabled {
   border-radius: 3px;
   border-style: solid; }

common/gtk-3.0/3.20/sass/_common.scss

@@ -1198,6 +1198,9 @@ headerbar {
   }
 
   // Linking stuff
+  .linked:not(.vertical):not(.path-bar):not(.stack-switcher) {
+    button:not(:last-child):not(:only-child) { margin-right: 1px; }
+  }
 
   // Reset buttons
   .linked:not(.vertical):not(.path-bar) > button,