public BorderProperties(double? width = null, LineStyle style = null, string color = null, MarkupMetric metric = null)
{
Width = width;
Style = style;
Color = color;
Metric = metric;
}
public Font(double? size = null, double? weight = null, FontStyle style = null, MarkupMetric metric = null, string family = null)
{
if (size.HasValue)
Size = size;
if (weight.HasValue)
Weight = weight;
if (style != null)
Style = style;
if (metric != null)
Metric = metric;
if (!string.IsNullOrEmpty(family))
Family = family;
}
