Vue PieChart - commonSeriesSettings.selectionStyle.border
An object defining the border properties for a selected series.
To set custom border settings specific to the 'selected' state for the series, use the properties of the series.selectionStyle.border configuration object.
color
Sets a border color for a selected series.
This property supports the following colors:
- Hexadecimal colors
- RGB colors
- RGBA colors
- Predefined/cross-browser color names
- Predefined SVG colors
- Paint server address
dashStyle
Specifies a dash style for the border of a selected series point.
The following dash styles are available:
- solid 
 The border is a solid, continuous line.
- longDash 
 The border is displayed using long dashes.
- dash 
 The border is displayed using dashes.
- dot 
 The border is displayed using dots.
- Any combination of 'longDash', 'dash' and 'dot' 
 The border is displayed by repeating the specified combination. For instance, 'dashdotdash'.
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