Enhancement: Fixes #22, implement GtkTreeView styles

themes/luna/blue/gtk-3.0/controls/treeview.scss

@@ -0,0 +1,71 @@
+/**
+ * treeview.scss - Tree View Widget Luna (Blue) Styles
+ *
+ * This source-code is part of Windows XP stuff for XFCE:
+ * <<https://www.oddmatics.uk>>
+ *
+ * Author(s): Rory Fewell <roryf@oddmatics.uk>
+ */
+
+treeview
+{
+    -GtkTreeView-expander-size: 10;
+    background-color: #FFF;
+    
+    
+    &.view
+    {
+        &:selected
+        {
+            background-color: #ECE9D8;
+            
+            
+            &:focus
+            {
+                background-color: #316AC5;
+                color: #FFF;
+            }
+        }
+        
+        &.expander
+        {
+            -gtk-icon-source: url("../Resources/treeview_expander_expand.png");
+            
+            
+            &:checked
+            {
+                -gtk-icon-source: url("../Resources/treeview_expander_collapse.png");
+            }
+        }
+        
+        header button
+        {
+            background: #EBEADB;
+            border: none;
+            border-bottom-style: solid;
+            border-bottom-width: 3px;
+            border-image: url("../Resources/treeview_header_border.png") 0 0 3 0 stretch;
+            padding: 3px 7px 0px;
+            
+            
+            &:hover
+            {
+                background-color: #FFF;
+                border-image: url("../Resources/treeview_header_border_hover.png") 0 7 3 7 stretch;
+                border-style: none solid solid;
+                border-width: 0px 7px 3px;
+                padding-left: 0px;
+                padding-right: 0px;
+            }
+            
+            &:active
+            {
+                background-color: #DEDFDA;
+                border-image: url("../Resources/treeview_header_border_press.png") 2 1 1 3 stretch;
+                border-style: solid;
+                border-width: 2px 1px 1px 3px;
+                padding: 1px 6px 2px 4px;
+            }
+        }
+    }
+}

themes/luna/blue/gtk-3.0/main.scss

@@ -20,4 +20,5 @@
 @import "controls/scale";
 @import "controls/scrollbar";
 @import "controls/textview";
-@import "controls/tooltip";
+@import "controls/tooltip";
+@import "controls/treeview";