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Looks like Carbon to me. In other words, fake.

https://carbon.now.sh/

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Carbon does not have that theme though, it is probably hyper terminal on Macos with the author's theme https://github.com/klauscfhq/hyperocean

* there is no custom theme option either, and they have stopped accepting new themes too; https://github.com/dawnlabs/carbon/issues/427#issuecomment-4...