In the 'special options' section at the end of 'O's menu, change the
spelling for the menucolors entry to "menu colors" so that it isn't
spelled exactly the same as the 'menucolors' boolean option. Only
affects what the player sees when reading that menu.
If player uses 'O' to add any menu colors and 'menucolors' boolean is
Off at the time, give a reminder to toggle it to On in order to have
those menu colorings become active. (Adding hilite_status entries has
a similar reminder for 'statushilites' if done while that is 0.)
f3c4a52e36