Blend for Visual Studio 2013 understands only two languages

Blend udnerstands HTML and XAML only.
You can use C#, Visual Basic or C++ for most XAML Store apps and Javascript for HTML Store Apps. XAML is of course more versatile but requires a steeper learning curve.

• HTML Store Apps

1. Universal Apps

          Blank App
          Hub/Pivot
          Navigation App

    2.  Windows Apps

          Blank App
          Grid App
          Split App
          Hub App
          Navigation App
 
   3. Windows Phone Apps
    
        Blank App
        Pivot App
        Navigation App

• XAML Store Apps

1.  Universal Apps

        Blank APP
        Hub App
        Class Library (Portable for Universal App)
        Windows Runtime Component (Portable for Universal App)
        Windows Runtime Component(Universal App)
  
    2.   Windows Apps
    

         Blank App

         Hub App

         Grid App

         Split App

         Class Library

         Windows Runtime Component

   

   3  Windows Phone Apps
    
        Blank App
        Hub App
        Pivot App
        WebView App
        Class Library
        Windows Runtime Component
        Blank App (Windows Phone Silverlight)
        Databound App (Windows Phone Silverlight)
        Control Library (Windows Phone Silverlight)
        Panorama App (Windows Phone Silverlight)
        Pivot app(Windows Phone Silverlight)

Project types using the Microsoft Visual Studio Express 2013 for Windows

Microsoft Visual Studio Express 2013 for Windows Update 2 RC was installed on a Windows 8.1 Laptop computer. In addition to the Windows program Microsoft Visual Studio Express 2013 for Web and Blend for Visual Studio 2013 (This will be installed if you are to run just the Update 2 RC) were also installed on the computer. With Blend you can develop HTML and XAML Store Apps.

Here is a screen shot of the details of Microsoft Visual Studio Express 2013 for Windows Update 2 RC.

Using this interface you can create a variety of project types using the templates as shown in the next image.

On line resources provide lot more samples.

Except Visual Basic the other project types (JavaScript, C# and C++) allows you to create Universal Apps which is a single page universal app for Windows and Windows Phone that uses the Windows Runtime and has no predefined controls or layout.


If you are only developing Store Apps with JavaScript then you have the following options:

1. Universal Apps

•    Blank Universal App - single page Windows & Windows Phone APP
•    Hub/Pivot Universal App - three page app that uses a Hub control for Windows and Pivot control for Windows Phone
•    Navigation Universal App - Windows and windows Phone app that has predefined navigation  controls

2. Windows Apps

•    Blank App - single-page app
•    Grid App  - three-page app
•    Split App - two-page app for master detail
•    Hub App   - three-page app using a Hub Control
•    Navigation App -An app with predefined navigation controls

3. Windows Phone Apps

•    Blank App - single page app with no predefined controls/layout
•    Pivot App - an app that uses a Pivot control
•    Navigation app - An app with predefined navigation controls