protected override void GenerateRatingVariantStyles(StringBuilder sb, Theme theme, string variant, string inBackgroundColor, ThemeRatingOptions ratingOptions)
 {
     sb
     .Append($".rating .rating-item.rating-item-{variant}").Append("{")
     .Append($"color: {Var( ThemeVariables.VariantRatingColor( variant ) )};")
     .AppendLine("}");
 }