iOS Menu
Funny, a couple years ago I thought a lot about pulling off visualeffectviews with rounded edges when making thimblemac.com, <a href="https://stackoverflow.com/questions/26518520/how-to-make-a-smooth-rounded-volume-like-os-x-window-with-nsvisualeffectview/28256073#28256073" rel="nofollow">https://stackoverflow.com/questions/26518520/how-to-make-a-s...</a> goes a bit into the various os-version-specific ways people have done this