IconMaker is an app that let you easily make shiny rounded icons like Apple does for App Store apps! You just need to put your 144x144 (or 114x114) icon in your photo library, select it in the app with the camera button, choose your settings and then tap "Generate icon"!
Here are the options :
- Save to Camera Roll : save the generated icon to your camera roll
- Save to .png files : save the generated icons to /var/mobile/Library/IconMaker/
- Apply overlay : apply the gloss effect
- Open in iFile : open the icon file in iFile when done generating
To create a custom theme, you need to create your own folder in /var/mobile/Library /IconMaker/CustomThemes/ containing AppIconMask.png, AppIconShadow.png and AppIconOverlay.png (don't forget @2x~iphone and ~ipad versions).
See More Info below for Screenshots