[Therion] colour by map

[Bruce]

>When you have coloured by map, in the header there Therion automatically
adds a legend of what colours go with each map. ...
>Is it possible to turn off the map colour legend without resorting to code.


Similar to my question re map-fg altitude
http://article.gmane.org/gmane.comp.gis.therion/3259/match=legend+altitude

Perhaps we could have a new option

legend-map-fg [on|off] #with the (current) default as on.

Bruce