added favicon of logo to webview

Author: ash-t-luu

media/favicon.ico

@@ -45,7 +45,13 @@
           "name": "Test"
         }
       ]
-    }
+    },
+    "viewsWelcome": [
+      {
+        "view": "metrics-file",
+        "contents": "View tree to see where improvements can be made!\n[View Tree](command:myExtension.showPanel)\n"
+      }
+    ]
   },
   "scripts": {
     "lint": "eslint .",

package.json

@@ -8,16 +8,18 @@ function createPanel(context) {
         // create one new tab
         vscode.ViewColumn.One,
         {
-            enableScripts: true
+            enableScripts: true,
+            retainContextWhenHidden: true
         }
     );
 
+    panel.iconPath = vscode.Uri.joinPath(context.extensionUri, 'media', 'favicon.ico');
+
     const bundlePath = vscode.Uri.joinPath(context.extensionUri, 'build', 'bundle.js');
 
     // set webview URI to pass into html script
     const bundleURI = panel.webview.asWebviewUri(bundlePath);
 
-
     // render html of webview here
     panel.webview.html = createWebviewHTML(bundleURI);
 }