Theme : update default colors for header

css/main.css

@@ -271,10 +271,11 @@ div[contenteditable="false"]{
 	border: 1px solid rgba(0,0,0,.125);
 }
 #mainMenu{
-	background : #343a40;
+	background : #222930;
 	padding: 5px;
 	height:50px;
 	z-index:10001;
+	box-shadow: 0 0 0.2rem rgb(0 0 0 / 10%), 0 0.2rem 0.4rem rgb(0 0 0 / 20%);
 }
 .modal-open #mainMenu{
 	z-index:1030;

plugin/dashboard/css/main.css

@@ -6,8 +6,4 @@
 	padding:0;
 }
 
-html.module-index,
-.module-index body{
-	background-color: #efefef;
-}