Add theme color

Author: isbendiyarovanezrin

01 - JavaScript Drum Kit/index.html

@@ -8,6 +8,7 @@
     <meta charset="UTF-8" />
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="theme-color" content="#181818" />
 
     <!-- favicon -->
     <link rel="icon" href="img/drum.png" />