Martin Lexow created a sexier alternative to the default AppKit “About” window called Uberabout

You know, these things:

The info available to be displayed there is:

• app icon
• app name
• version number
• build number

Now Martin came up with a drop-in replacement for the same info but with less ugliness:

Check out the GIF in the project’s readme to see its 3D transition effects in action!

Sadly it’s only for macOS 11.0+, so for projects pre-Big Sur, you have bad luck. But it’s written with SwiftUI, so you may still learn one thing or another, or adapt the code to your project if you want!