Now you can relive that horror, thanks to Felix Rieseberg, a developer at Slack. Mac OS 8, for example, was a perfect example of both ’90s style and digital function, with solid-looking window frames around programs, icons that actually looked like things, and a lovely bomb that appeared when your Macintosh inevitably crashed. That’s the design language of making digital things look like their real-world counterparts, in case you didn’t already know. It wasn’t always like that, though, with Apple leaning heavily into skeuomorphism for most of its lifetime. Nowadays, the operating system on Apple’s computers is a slick, well-oiled system of mostly-flat design.