Non Commercial licensing in mainstream Julia Packages

General Usage
10

Color schemes are not eligible for copyright protection, so that license link isn’t necessary. I’ve opened a PR to remove it. It’s good that Nexus caught this issue, but it’s a false alarm for subtle reasons that I wouldn’t expect an automated checker to catch:

  • Logos in the julia-logo-graphics repo are CA-BY-NC-4.0 because we do not want people to be able to use the Julia logos for commercial purposes without asking permission.
  • Code in that repo is covered by the MIT license since we do want people to be able to use the code freely.
  • Neither license is required to use the colors since color schemes are not eligible for copyright protection.
  • The code doesn’t appear to come from that repo, just the color values. Even if the code was copied from that repo it would be fine since the MIT license applies to code and no license is required for the colors.
  • The only way the CA-BY-NC-4.0 license would apply to the ColorSchemes package would be if it included the actual Julia logo, which it does not.
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