button spacing tweak. Dropdown hover color tweak, sexy pattern added

public/less/bootswatch.dark.less

@@ -356,6 +356,7 @@ div.subnav {
 // -----------------------------------------------------
 .btn {
 	padding: 6px 12px;
+	margin-right:10px;
 	background-image: none;
 	// .box-shadow(0px 0px 8px @bodyBackground);
 	border: none;

public/less/overrides.less

@@ -22,6 +22,11 @@
 
 // Backgrounds
 // ---------------------
+.main-view {
+  background: url(/img/grafana_pattern.png);
+  background-position: 100% -550px;
+  background-repeat: no-repeat;
+}
 
 .bgNav {
   background: @navbarBackground;

public/less/sidemenu.less

@@ -40,7 +40,7 @@
   }
   .top-nav-menu-btn {
     a {
-      background-color: @sideMenuBackground;
+      background-color: @pageBackground;
       padding-right: 67px;
       padding-left: 24px;
     }

public/vendor/bootstrap/less/dropdowns.less

@@ -91,7 +91,7 @@
 .dropdown-submenu:focus > a {
   text-decoration: none;
   color: @dropdownLinkColorHover;
-  #gradient > .vertical(@dropdownLinkBackgroundHover, darken(@dropdownLinkBackgroundHover, 5%));
+  background-color: @grafanaListHighlight;
 }
 
 // Active state
@@ -102,7 +102,7 @@
   color: @dropdownLinkColorActive;
   text-decoration: none;
   outline: 0;
-  #gradient > .vertical(@dropdownLinkBackgroundActive, darken(@dropdownLinkBackgroundActive, 5%));
+  background-color: @grafanaListHighlight;
 }
 
 // Disabled state