Merge pull request #2990 from jasongrout/splash

Display the splash screen only until the theme manager is ready.

packages/apputils-extension/src/index.ts

@@ -169,7 +169,7 @@ const themes: JupyterLabPlugin<IThemeManager> = {
     const disposable = splash.show();
     const dispose = () => { disposable.dispose(); };
 
-    manager.ready.then(() => { setTimeout(dispose, 2500); }, dispose);
+    manager.ready.then(dispose, dispose);
 
     return manager;
   },

packages/apputils-extension/style/splash.css

@@ -37,7 +37,7 @@
   width: 100%;
   height: 100%;
   z-index: 1;
-  animation: 1.5s fade-in linear forwards;
+  animation: .3s fade-in linear forwards;
 }
 
 .planet {