When looking at the different designs, you can see that Apple has gone back and forth between more elaborate designs and very simple ones. You have the original bold button from 1984, which became a very simple button in 1986. That button stuck around for 11 years until Apple gave it a gray tint in 1997. Then there were the bright, weathered days of Mac OS
The Timeline is a fun journey through a part of the Mac operating system that we don’t usually think about much. The next time you click “OK,” know that someone has put a lot of thought into that button.
