Jailbreakers were theming their iPhones for decades, but while you want to refrain from jailbreaking, one can change that app’s ugly icon using previously mentioned iPhone Explorer .
Since iPhone Explorer is cross platform, this trick will work on Windows and Mac machines. All you have to do is open up iPhone Explorer or Phone Disk and navigate into the app’s folder, located in /Apps/appname.app/appname.app.app (where appname is the name of the app you must change and devicename is the name of your device). Within that folder, find the png file this is the icon, named something like icon@2x.png for an iPhone 4, or Icon.png for iPhone 3GS and below. Back that up and replace it together with your own icon (you’re able to usually find some good icons around sites like Iconspedia ). Be sure the icon is in PNG format and is 114×114 pixels for the iPhone 4, 57×57 for the iPhone 3GS and earlier. After rebooting your phone, you need to see the old icon replaced along with your new one. Note that this only works with 3rd party apps from the App Store, not apps that come to your device.
Update: Originally, we said this technique worked with previously mentioned Phone Disk. Because of the way iPhone Explorer organizes the file system, the paths are actually different-we couldn’t find the apps folders with Phone Disk, but when you download iPhone Explorer this trick should work as described. Sorry for the confusion.
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