.NET Chart Series Attributes

Distinctive Colors
Use distinctive colors to highlight individual data points in the chart. Consistent Formatting
Maintain consistent formatting across the other elements in the series and the data points you want to highlight. This includes consistent use of fill styles (solid, gradient, image), line styles (solid, dashed, dotted), and marker styles (circles, squares, etc.). Labeling
Clearly label each series in the chart. Labels should be concise yet descriptive enough to understand each series's representation without confusion. Avoid cluttering the chart with too many labels.