Apple’s Icons Have That Shape for a Very Good Reason

For those interested in something similar regarding the iPhone X notch: <a href="https:&#x2F;&#x2F;medium.com&#x2F;tall-west&#x2F;no-cutting-corners-on-the-iphone-x-97a9413b94e" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;tall-west&#x2F;no-cutting-corners-on-the-iphon...</a>

Related folklore about Jobs and round rects. May even be a better explanation.<p><a href="https:&#x2F;&#x2F;www.folklore.org&#x2F;StoryView.py?story=Round_Rects_Are_Everywhere.txt" rel="nofollow">https:&#x2F;&#x2F;www.folklore.org&#x2F;StoryView.py?story=Round_Rects_Are_...</a>

Is &quot;tangency&quot; really a widespread term for curvature discontinuity?

(2017), but still good.