Toolbar better contrast for hightlihgts

bin/common.less

@@ -17,7 +17,7 @@
 @cdb-flageditor-layer: @popup-layer;
 @cdb-preview-layer: @popup-layer + 10;
 
-@color-highlight-gray: #737373;
+@color-highlight-gray: #969696;
 @color-highlight: #4772b3;
 @color-border: #3d3d3d;
 @color-border-hover: #3d3d3d;

bin/style.css

@@ -645,6 +645,9 @@ input[type=checkbox]:checked:after {
 .tb-group > * .icon {
   font-size: 14px;
 }
+.tb-group > * .icon:before {
+  text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.45);
+}
 .tb-group > * .label {
   font-family: Verdana, serif;
   display: inline-block;
@@ -668,7 +671,7 @@ input[type=checkbox]:checked:after {
 .tb-group > *.button2:active,
 .tb-group > *.button2[checked],
 .tb-group > *.menu:active {
-  background: #737373;
+  background: #969696;
 }
 .tb-group > *.menu {
   background: #282828;

bin/style.less

@@ -671,6 +671,9 @@ input[type=checkbox] {
 
 		.icon {
 			font-size: 14px;
+			&:before {
+				text-shadow: 1px 1px 1px rgba(0,0,0,0.45);
+			}
 		}
 
 		.label {