Add meta theme-color tag

Author: addyosmani

template/index.html

@@ -7,6 +7,8 @@
     <title>{{ name }}</title>
     <!-- Add to home screen for Android and modern mobile browsers -->
     <link rel="manifest" href="/static/manifest.json">
+    <meta name="theme-color" content="#4DBA87">
+
     <!-- Add to home screen for Safari on iOS -->
     <meta name="apple-mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-status-bar-style" content="black">

template/static/manifest.json

@@ -16,5 +16,5 @@
   "start_url": "/index.html",
   "display": "standalone",
   "background_color": "#000000",
-  "theme_color": "#4dba87"
+  "theme_color": "#4DBA87"
 }