public override Style VisitTagValueSyntax(PgnTagValueSyntax node, PgnEditor pgnEditor) => pgnEditor.Styles[node.ContainsErrors ? errorTagValueStyleIndex : tagValueStyleIndex];
public virtual void VisitTagValueSyntax(PgnTagValueSyntax node) => DefaultVisit(node);
public override IGreenPgnSymbol VisitTagValueSyntax(PgnTagValueSyntax node) => node.Green;