Bsd less

BSD variation of less.
You may also be interested in gnu less.

Documentation

man less

https://www.freebsd.org/cgi/man.cgi?query=less

Configuration

Colours

less colours can be controlled via $LESS_TERMCAP_* environment variables.
See https://unix.stackexchange.com/questions/108699/documentation-on-less-termcap-variables