Microsoft today released the updated Windows Phone Store Badges that developers can use on websites for link to Windows Phone Store apps. The new badges have updated Store icon which is same as Windows Store on Windows 8.
Here is some more info about the badges,
Two Colors: The new badge is available in two colors to provide increased flexibility in your app marketing content: a standard black and white image, and one in a classic Windows Phone blue accent color.
Three Resolutions: We also are making the badge available in three sizes (125 x 40; 208 x 67; and 376 x 120) to give you the greatest flexibility in your print and online app marketing. Additionally, you can also resize the logo as needed, provided that the final image is at least 40 pixels high (0.56 inches or 14.11 mm).
Global Applicability: What you wonâ€™t see with the new Windows Phone Store badge is a multitude of localized Download Now images, for all the different markets where Windows Phone apps are available. Instead, the new badge has the clean and simple shopping bag icon customers see in the Windows Phone Store and the Windows Store to indicate that your app is ready to purchase and download.
You can read about guidelines about using this badge here at Windows Phone team blog.Â