/**
* Substitutes the icon fields according to the spec.
*
* @param substituter
* @return The substituted icon
*/
public Icon substitute(Substitutions substituter)
{
Icon icon = new Icon(this);
icon.content = substituter.substituteString(Substitutions.Type.MESSAGE, content);
return icon;
}
/**
* Creates an icon for substitute()
*
* @param icon
*/
private Icon(Icon icon)
{
mode = icon.mode;
type = icon.type;
}