Added autosave and theme to preferences dialog

nw/themes/default_dark/styles.css

@@ -1,3 +1,7 @@
+/**
+ * Default Theme: Dark
+ */
+
 * {
     background-color: #999999;
 }

nw/themes/default_dark/theme.conf

@@ -1,3 +1,6 @@
+[Main]
+name           = Default Dark
+
 [Syntax]
 text           = 199, 207, 208
 link           = 184, 200,   0

nw/themes/default_light/styles.css

@@ -0,0 +1,7 @@
+/**
+ * Default Theme: Light
+ */
+
+QTreeView, QHeaderView {
+    font-size: 13px;
+}

nw/themes/default_light/theme.conf

@@ -0,0 +1,18 @@
+[Main]
+name           = Default Light
+
+[Syntax]
+text           =  0,  0,  0
+link           =  0,  0,  0
+headertext     =  0,  0,  0
+headertag      =  0,  0,  0
+emphasis       =  0,  0,  0
+straightquotes =  0,  0,  0
+doublequotes   =  0,  0,  0
+singlequotes   =  0,  0,  0
+hidden         = 50, 50, 50
+keyword        =  0,  0,  0
+value          =  0,  0,  0
+spellcheckline =  0,  0,  0
+tagerror       =  0,  0,  0
+replacetag     =  0,  0,  0