The colour aesthetic has to be a maped inside aes() for the manual legend to work.
If you need more specific help, please provide a proper REPRoducible EXample (reprex) illustrating your issue.
The colour aesthetic has to be a maped inside aes() for the manual legend to work.
If you need more specific help, please provide a proper REPRoducible EXample (reprex) illustrating your issue.