object LegendEditor is
   components: FillEditor* or GradientEditor* or IconEditor*;
   description: (*
       These are the three different ways to represent data.
   *);
end LegendEditor;

object FillEditor is
   components: LegendElements* and ColorSelection* and DefineColor* and Label and Preview;
end FillEditor;

object GradientEditor is
   components: LegendElements*, ColorSelection*, Shade*, Label, Preview;
end GradientEditor;

object IconEditor is
   components: LegendElements* and Icon and Label and Preview;
end IconEditor;

object ColorSelection is
   components: Black or Purple or Brown or Turquoise or Red or Yellow or Green or Blue;
   description:  (*
       Each of the available colors consist of some amount of Red, Green and Blue.
   *);
end ColorSelection;

object LegendElements is 
   components: Icon and Label;
end LegendElements;

operation DefineColor is
   inputs: Color;
   outputs: NewColor;
   description:  (*
       The slider bars for Red, Green and Blue are used to create a new color.
   *);
end DefineColor;

obj Color is Red or Green or Blue;

object Preview is
   components: Icon and Label;
   description:  (*
       The box shows the currently created Legend Element before added to the Legend Element list.
   *);
end Preview;

object NewColor is integer
   components: Red and Green and Blue;
   description:  (*
       New color consisting of an amount of Red, Green and Blue.
   *);
end NewColor;

object Opacity is integer;