We don’t know how this one works but if you follow the steps below and use a particular wallpaper image, the folders on the iOS home screen become circular. No jailbreak required. Nothing required, in fact, apart from a particular wallpaper image.
Here are the steps. We’ll speculate about how it works after.
- On your iPhone or iPad, visit this site (Chinese language) and scroll down to the wallpaper images, which are shown as colored blocks. Choose a color you like, then tap and hold it, and choose to save it.
- Open the Settings app, then the Wallpaper heading, and then Choose A New Wallpaper. Choose the image you saved in the step above.
- Choose Still rather than Perspective view, and after tapping Set, choose to apply it only to the Home screen.
And that’s it. Any folders on your home screen will now appear be circular.
So, what’s going on? The images are extremely simple 3×3 pixel PNG files, with 8-bit color depth. They’re graduated in slightly different shades from lightest at the top to darker at the bottom. Somehow this confuses iOS’ rendering system into fully curving the edges of the ordinarily rounded-square folders. Maybe it’s something to do with the translucent effect applied to the folder? We just don’t know!
We’re sure this is safe because what’s being used is just a very simple image file. As soon as you switch to any other wallpaper image the ordinary folders will return.