MenuStyle ActiveColorset and the need of HilightBack/ActiveFore

[Viktor Griph]

Hi

When using the ActiveColorset menustyle, you also have to specify 
HiglightBack and/or ActiveFore (without arguments) in order to make the 
style use the colorset. Just using ActiveAcolorset has no effect 
what-so-ever. I think it would be good to make ActivColorset imply 
ST_DO_HILIGHT_FORE and ST_DO_HILIGHT_BACK.

I don't think many users use a colorset, of which they only want to use 
one (or no) color. By leaving the ability to turn off the use of the 
colors the current behaviour could be restored with a minor addition to a 
config file. Alternatively one could make ActiveCColorset imply 
ST_DO_HILIGHT_FORE and ST_DO_HILIGHT_BACK as long as none of those stiles 
have been used, which would only change behaviour for the few users that 
have an active colorset not used at the cost of one extra bit per 
menustyle.

/Viktor