Question

When submitting a Windows Phone 7 app, you need to include the following icons:

• Large Mobile
• Small Mobile
• Large PC

Once listed on the market, the Large PC icon is displayed in the Marketplace on both the phone and PC – different style icons were used for each. What are these other icons used for?

Here is an image to clarify what we are seeing:

Answer 1

There are 6 images to be concerned about, but given pixel dimensions of two of them being the same, you could use just 5 images.

#  Image        Where Used?                   Size (Pixels) File Type Require/Option 
1. Small mobile Phone Marketplace catalog     99 x 99       PNG       Required
2. Large mobile Phone Marketplace catalog     173 x 173     PNG       Required
3. Large PC     PC Marketplace catalog (Zune) 200 x 200     PNG       Required
4. Background   Background panorama           1000 x 800    PNG       Optional
5. App Icon     In the app list on the phone  62 x 62       PNG       Required
6. App Tile     In the start page on the phone173 x 173     PNG       Required

Notes:

1. 1-4 are for selling/marketing your
   app. 1-2 are shown in the
   Marketplace on the phone and 3 is
   shown in Zune. #4 – I believe it is
   shown on both phone/Zune.
2. 5-6 are used once the app is
   installed. These are to be listed your WMAppManifest.xml as <IconPath IsRelative="true" IsResource="false">ApplicationIcon.png</IconPath> and <BackgroundImageURI IsRelative="true" IsResource="false">Background.png</BackgroundImageURI> respectively.
3. 2 and 6 are the same pixel size, so they
   can be the same, if that’s what you want. I’ve done that.
4. You can use transparency on #6,
   but don’t use it on any other image.