Looks nice to look at, but I wish the designer gave more thoughts on usability. For example, the images show different icons on the home button. One image show

Looks nice to look at, but I wish the designer gave more thoughts on usability. For example, the images show different icons on the home button. One image shows the home button works as a crop button. How does a user supposed to go back home? Cancel? Done? Crop? Then in music app, which one to press for home? Is it the hamburger menu, square icon or press the hardware home button?