In prior versions the styles of menuitems could be adjusted in the creation, 'style' is not used in v6.
I am specifically trying to style menus in a custom plugin menubutton each with their own color.
How can this be adjusted in v6.
for example
{ type: 'menuitem', text: 'blue item', style: 'background:blue;', onAction: function() { ... }
style is ignored
