Extract color

searx/static/themes/courgette/less/style.less

 
 @color-main: #3498DB;
+@color-focus: #0665A2;
 @color-other-links: #666;
 @color-fonts: #333;
 @center-width: 70em;
 
 #search_submit:hover,
 #search_submit:focus {
-	background-color: #0665A2;
+	background-color: @color-focus;
 }
 
 #sidebar {
 #sidebar input[type="submit"]:hover,
 #sidebar input[type="submit"]:focus {
 	color: #FFF;
-	background-color: #0665A2;
+	background-color: @color-focus;
 }
 
 #results {
 
 input[type="submit"]:hover,
 input[type="submit"]:focus {
-	background: #0665A2;
+	background: @color-focus;
 }
 
 .row {