This was glorious, and it is now implemented in SwiftTerm by default.

While it is true that certain users in a dorm at Darmouth or MIT might carry with them the script to tune their color palette, I believe that users in the wild deserve to keep their retinas.

https://gist.github.com/jake-stewart/0a8ea46159a7da2c808e5be2177e1783

Terminals should generate the 256-color palette

Terminals should generate the 256-color palette. GitHub Gist: instantly share code, notes, and snippets.

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@Migueldeicaza back in our day, the script we used to tune our color palette was called “the brightness and contrast knobs”