diff --git a/common/gtk-3.0/3.20/gtk-dark.css b/common/gtk-3.0/3.20/gtk-dark.css
index 5231970..ed845fb 100644
--- a/common/gtk-3.0/3.20/gtk-dark.css
+++ b/common/gtk-3.0/3.20/gtk-dark.css
@@ -3131,6 +3131,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #404552; }
+
+layout {
+  border: 1px solid #2b2e39;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #2b2e39; }
+
+perspectiveswitcher {
+  background: #383C4A; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #383C4A;
+  border-bottom: 1px solid #2b2e39; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #2b2e39;
+      background-color: #404552; }
+
+dockbin {
+  border: 1px solid #2b2e39;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #2b2e39; }
+
+dockoverlayedge {
+  background-color: #383C4A; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/gtk-darker.css b/common/gtk-3.0/3.20/gtk-darker.css
index 85895c6..aadab02 100644
--- a/common/gtk-3.0/3.20/gtk-darker.css
+++ b/common/gtk-3.0/3.20/gtk-darker.css
@@ -3130,6 +3130,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #ffffff; }
+
+layout {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #dcdfe3; }
+
+perspectiveswitcher {
+  background: #F5F6F7; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #F5F6F7;
+  border-bottom: 1px solid #dcdfe3; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #dcdfe3;
+      background-color: #ffffff; }
+
+dockbin {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #dcdfe3; }
+
+dockoverlayedge {
+  background-color: #F5F6F7; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/gtk-solid-dark.css b/common/gtk-3.0/3.20/gtk-solid-dark.css
index cda6197..a00250b 100644
--- a/common/gtk-3.0/3.20/gtk-solid-dark.css
+++ b/common/gtk-3.0/3.20/gtk-solid-dark.css
@@ -3131,6 +3131,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #404552; }
+
+layout {
+  border: 1px solid #2b2e39;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #2b2e39; }
+
+perspectiveswitcher {
+  background: #383C4A; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #383C4A;
+  border-bottom: 1px solid #2b2e39; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #2b2e39;
+      background-color: #404552; }
+
+dockbin {
+  border: 1px solid #2b2e39;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #2b2e39; }
+
+dockoverlayedge {
+  background-color: #383C4A; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/gtk-solid-darker.css b/common/gtk-3.0/3.20/gtk-solid-darker.css
index 689c9fc..58d31a0 100644
--- a/common/gtk-3.0/3.20/gtk-solid-darker.css
+++ b/common/gtk-3.0/3.20/gtk-solid-darker.css
@@ -3130,6 +3130,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #ffffff; }
+
+layout {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #dcdfe3; }
+
+perspectiveswitcher {
+  background: #F5F6F7; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #F5F6F7;
+  border-bottom: 1px solid #dcdfe3; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #dcdfe3;
+      background-color: #ffffff; }
+
+dockbin {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #dcdfe3; }
+
+dockoverlayedge {
+  background-color: #F5F6F7; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/gtk-solid.css b/common/gtk-3.0/3.20/gtk-solid.css
index 402e915..8fd8b86 100644
--- a/common/gtk-3.0/3.20/gtk-solid.css
+++ b/common/gtk-3.0/3.20/gtk-solid.css
@@ -3134,6 +3134,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #ffffff; }
+
+layout {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #dcdfe3; }
+
+perspectiveswitcher {
+  background: #F5F6F7; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #F5F6F7;
+  border-bottom: 1px solid #dcdfe3; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #dcdfe3;
+      background-color: #ffffff; }
+
+dockbin {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #dcdfe3; }
+
+dockoverlayedge {
+  background-color: #F5F6F7; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/gtk.css b/common/gtk-3.0/3.20/gtk.css
index 30872fb..0a9adf0 100644
--- a/common/gtk-3.0/3.20/gtk.css
+++ b/common/gtk-3.0/3.20/gtk.css
@@ -3134,6 +3134,63 @@ popover.background label.nautilus-canvas-item.separator, headerbar .nautilus-can
   margin: 2px;
   padding: 2px; }
 
+.gb-search-entry-occurrences-tag {
+  background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none; }
+
+layouttab {
+  background-color: #ffffff; }
+
+layout {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid #dcdfe3; }
+
+perspectiveswitcher {
+  background: #F5F6F7; }
+
+pillbox {
+  color: #ffffff;
+  background-color: #5294E2;
+  border-radius: 3px; }
+
+tabstrip {
+  padding: 0 6px;
+  background-color: #F5F6F7;
+  border-bottom: 1px solid #dcdfe3; }
+  tabstrip tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px; }
+    tabstrip tab label {
+      opacity: 0.5; }
+    tabstrip tab:checked label, tabstrip tab:hover label {
+      opacity: 1; }
+    tabstrip tab:checked {
+      border-color: #dcdfe3;
+      background-color: #ffffff; }
+
+dockbin {
+  border: 1px solid #dcdfe3;
+  -PnlDockBin-handle-size: 1; }
+
+dockpaned {
+  border: 1px solid #dcdfe3; }
+
+dockoverlayedge {
+  background-color: #F5F6F7; }
+  dockoverlayedge tabstrip {
+    padding: 0;
+    border: none; }
+  dockoverlayedge.left-edge tab:checked,
+  dockoverlayedge.right-edge tab:checked {
+    border-width: 1px 0; }
+
 button.documents-load-more {
   border-width: 1px 0 0;
   border-radius: 0; }
diff --git a/common/gtk-3.0/3.20/sass/_applications.scss b/common/gtk-3.0/3.20/sass/_applications.scss
index 478dc5d..2a54eab 100644
--- a/common/gtk-3.0/3.20/sass/_applications.scss
+++ b/common/gtk-3.0/3.20/sass/_applications.scss
@@ -268,6 +268,88 @@ $disk_space_free: darken($bg_color, 3%);
   padding: 2px;
 }
 
+//
+// Gnome Builder
+//
+.gb-search-entry-occurrences-tag { background: none; }
+
+workbench stack.titlebar {
+  padding: 0;
+  border: none;
+}
+
+layouttab {
+  background-color: $base_color;
+}
+
+layout {
+  border: 1px solid $borders_color;
+  -PnlDockBin-handle-size: 1;
+}
+
+eggsearchbar box.search-bar {
+  border-bottom: 1px solid $borders_color;
+}
+
+perspectiveswitcher {
+  background: $bg_color;
+
+  button {
+
+  }
+}
+
+pillbox {
+  color: $selected_fg_color;
+  background-color: $selected_bg_color;
+  border-radius: 3px;
+}
+
+tabstrip {
+  padding: 0 6px;
+
+  background-color: $bg_color;
+  border-bottom: 1px solid $borders_color;
+
+  tab {
+    min-height: 28px;
+    border: solid transparent;
+    border-width: 0 1px;
+
+    label { opacity: 0.5; }
+    &:checked, &:hover { label { opacity: 1; }}
+
+    &:checked {
+      border-color: $borders_color;
+      background-color: $base_color;
+    }
+  }
+}
+
+dockbin {
+  border: 1px solid $borders_color;
+  -PnlDockBin-handle-size: 1;
+}
+
+dockpaned {
+  border: 1px solid $borders_color;
+}
+
+dockoverlayedge {
+  background-color: $bg_color;
+
+  tabstrip {
+    padding: 0;
+    border: none;
+  }
+
+  &.left-edge tab:checked,
+  &.right-edge tab:checked {
+    border-width: 1px 0;
+  }
+}
+
+
 //
 // Epiphany
 //