Change metronic to use @asset instead of @css

resources/themes/metronic/views/layouts/partials/htmlheader.blade.php

@@ -14,10 +14,10 @@
 	--}}
 
 	<!-- Theme style -->
-	@css('css/components.css')
-	@css('css/style.css')
-	@css('css/style-responsive.css')
-	@css('css/themes/blue.css')
+	@asset('css/components.css')
+	@asset('css/style.css')
+	@asset('css/style-responsive.css')
+	@asset('css/themes/blue.css')
 
 	<!-- Google Font: Source Sans Pro -->
 	<link href="//fonts.googleapis.com/css?family=Open+Sans:300,400,600,700|PT+Sans+Narrow|Source+Sans+Pro:200,300,400,600,700,900&amp;subset=all" rel="stylesheet" type="text/css">
@@ -32,7 +32,7 @@
 	<link rel="shortcut icon" href="{{ object_get($site,'favicon','favicon.ico') }}" />
 
 	<!-- Custom CSS -->
-	@css('css/custom.css')
+	@asset('css/custom.css')
 
 	<!-- STYLESHEETS -->
 	{!! Asset::styles() !!}