Trend Line Attributes

The Trend Line element has the following attributes:

Attribute	Description
Color	Sets the line color. Enter a color by name, decimal RGB value, or hex RGB value. Prefix hex values with the pound sign, e.g. #112233. New for 14.1 Or, enter the token @Gradient to use a gradient fill to represent the data.
ID	The unique element ID.
Legend Label	Specifies the text that will be shown inside the chart legend for the trend line. A value must be provided here for an entry to appear in the legend.
Line Algorithm	Specifies the regression algorithm that will be used to generate the data points plotted by the trend line. Options include LinearRegression (the default) and the curve-fitting LOWESS algorithm.
Line Style	Specifies the pattern of the trend line as either Solid (the default) or a combination of dashes and/or dots.
Line Thickness	Specifies the thickness of the line, in pixels. The default value is 1 pixel.
Transparency	Specifies the transparency of the line color. The lowest value of 0 specifies that the line is opaque, with no transparency. At the other end of the scale, 15 specifies a completely transparent line.