+ " (or none) will apply. Valid values are the same as "
+ Arg.COLOUR.argString() + ".",
Opt.STRING, Opt.LINKED, Opt.MULTIVALUE, Opt.ALLOWMULTIID),
+ BGCOLOUR(Type.IMAGE, "bgcolor", // being a bit soft on the Americans!
+ "Applies a background colour to the structure image. Valid values are named colours or #RRGGBB.",
+ Opt.STRING, Opt.LINKED, Opt.MULTIVALUE, Opt.ALLOWMULTIID),
/*
STRUCTUREIMAGETYPE(Type.IMAGE,
"Set the structure image format for the preceding --structureimage. Valid values are:\n"