Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/nano/mutt.nanorc

 ## Here is an example for quoted emails (under e.g. mutt).

syntax "mutt"

# Quoted lines.
color green "^>.*"

# Signatures, even quoted ones.
color yellow start="^>* ?-- $" end="^>* ?$"