Designing an icon for your BlackBerry smartphone application lets you showcase your app to BlackBerry device users. In the BlackBerry World storefront, an icon is the first introduction that users have to your app. The icon also appears on the home screen as a way for users to open your app.
Your application name label appears below the icon.
For devices with a screen resolution of 720 x 720 pixels create an icon that is 90 x 90 pixels.
For devices with a screen resolution of 768 x 1280 pixels create an icon that is 110 x 110 pixels.
For devices with a screen resolution of 720 x 1280 pixels create an icon that is 96 x 96 pixels.
For future devices with a screen resolution of 1440 x 1440 pixels create an icon that is 144 x 144 pixels.
Focus on a single iconic metaphor that clearly represents the application. Think of your icon as a road sign that people understand quickly.
Use a silhouette to differentiate your icon from other icons.
Try to maintain consistency with other BlackBerry application icons in scale, volume, and color palette.
App icons are based on basic shapes. Most of the rounded squares and circles used in the UI have exactly the same size and proportions as the shapes you see below.
Focus area and lighting
If you use a symbol in your icon, make it the same size as the symbols in other BlackBerry application icons. The symbol should be 62% of the total size of your icon. Note that the lighting source appears to be shining on the upper left of the icon.
Limit the number of colors that you use in your icon. The colors shown here are used in BlackBerry application icons.