protected override void BuildClasses(ClassBuilder builder)
{
builder.Append(ClassProvider.Bar());
builder.Append(ClassProvider.BarBackground(Background), Background != Background.None);
builder.Append(ClassProvider.BarThemeContrast(ThemeContrast), ThemeContrast != ThemeContrast.None);
builder.Append(ClassProvider.BarBreakpoint(Breakpoint), Breakpoint != Breakpoint.None);
builder.Append(ClassProvider.FlexAlignment(Alignment), Alignment != Alignment.None);
base.BuildClasses(builder);
}