There are different types of tiles on windows phone. For your corona apps, just use the TemplateFlip type. This type of tile will be a static image instead of a “live tile.”
Select Tile Template:
* Double click WMAppManifest.xml file in your solution explorer. This brings up the editor for that file.
* One of the options is Tile Template. Make sure it is set to TemplateFlip
Create Icon Images:
You will need 3 images (or 4 if you want to support a large tile too).
Size your icon image to 200x200 and save it in the Assets/logo-200x200.png
Size your icon image to 159x159 and save it in the Assets/Tiles/logo-159x159.png
Size your icon image to 336x336 and save it in the Assets/Tiles/logo-336x336.png
Create an icon image at 691x336 and save it in the Assets/Tiles/logo-691x336.png (you only need this one if you want to support large tiles.
Add Icon Images to your Project:
* In your solution explorer right click the Assets/Tiles folder and select Add->Existing Item. Select your logo-159x159.png, logo-336x336.png, and logo-691x336.png files and click OK.
* In your solution explorer right click the Assets folder and select Add->Existing Item. Select your logo-200x200.png file and click OK.
Configure your app to use the Icon Images:
* Open the WMAppManifest.xml editor window again
* In the App Icon: row click the “…” button and select your logo-200x200.png
* If you made a large icon (691x336) then check the “Support for large Tiles” option
* In the Tile Images: row click the “…” button under the Small: section and select your logo-159x159.png file
* In the Tile Images: row click the “…” button under the Medium: section and select your logo-336x336.png file
* In the Tile Images: row click the “…” button under the Large: section and select your logo-691x336.png file
Configure your Tile Label:
If you want to have a text label at the bottom of your tile icon, then enter in the label text in the Tile Title: row. If you don’t want to have text added to your tile, then delete it and enter in a single space.
Congratulations you have now configured your project to use your icons!