Replace the croydon icon with a placeholder

assets/img/favicon/browserconfig.xml

@@ -2,8 +2,8 @@
 <browserconfig>
     <msapplication>
         <tile>
-            <square150x150logo src="assets/img/favicon/mstile-150x150.png?v=rMqRMOG9oX"/>
-            <TileColor>#ff0000</TileColor>
+            <square150x150logo src="/assets/img/favicon/mstile-150x150.png"/>
+            <TileColor>#000000</TileColor>
         </tile>
     </msapplication>
 </browserconfig>

assets/img/favicon/site.webmanifest

@@ -0,0 +1,19 @@
+{
+    "name": "LocalGovDrupal",
+    "short_name": "LocalGovDrupal",
+    "icons": [
+        {
+            "src": "/assets/img/favicon/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/assets/img/favicon/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ],
+    "theme_color": "#ffffff",
+    "background_color": "#ffffff",
+    "display": "browser"
+}

templates/system/html.html.twig

@@ -31,11 +31,16 @@
     <head-placeholder token="{{ placeholder_token }}">
     <title>{{ head_title|safe_join(' | ') }}</title>
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
+
     <link rel="apple-touch-icon" sizes="180x180" href="/{{ base_path ~ directory }}/assets/img/favicon/apple-touch-icon.png">
     <link rel="icon" type="image/png" sizes="32x32" href="/{{ base_path ~ directory }}/assets/img/favicon/favicon-32x32.png">
     <link rel="icon" type="image/png" sizes="16x16" href="/{{ base_path ~ directory }}/assets/img/favicon/favicon-16x16.png">
-    <link rel="manifest" href="/{{ base_path ~ directory }}/assets/img/favicon/favicon.json">
-    <link rel="mask-icon" href="/{{ base_path ~ directory }}/assets/img/favicon/safari-pinned-tab.svg" color="#5bbad5">
+    <link rel="manifest" href="/{{ base_path ~ directory }}/assets/img/favicon/site.webmanifest">
+    <link rel="shortcut icon" href="/{{ base_path ~ directory }}/assets/img/favicon/favicon.ico">
+    <meta name="msapplication-TileColor" content="#000000">
+    <meta name="msapplication-config" content="/{{ base_path ~ directory }}/assets/img/favicon/browserconfig.xml">
+    <meta name="msapplication-TileImage" content="/{{ base_path ~ directory }}/assets/img/favicon/mstile-144x144.png">
+    <meta name="msapplication-TileImage" content="/{{ base_path ~ directory }}/assets/img/favicon/mstile-310x310.png">
     <meta name="theme-color" content="#000000">
 
     <css-placeholder token="{{ placeholder_token }}">