$ grep color muttrc
uncolor *
color hdrdefault red default
color quoted brightblue default
color signature red default
color indicator black red
color error brightred default
color status brightgreen blue
color tilde magenta default
color message brightcyan default
color markers brightcyan default
color attachment brightmagenta default
color search default green
color prompt brightmagenta black
color index blue black ~F
color index red black "~N|~O"
color header brightred default ^(From|Subject):
color body magenta default "(ftp|http|https)://[^ ]+"
color body magenta default "[-a-z_0-9.]+@[-a-z_0-9.]+"
color underline brightgreen default
color body brightgreen black '\*+[^*]+\*+'
color body brightgreen black '_+[^_]+_+'