Tooltip

Specifies the configuration options of the tooltip.

Name	Type	Default	Description
background?	string		Specifies the background color of the tooltip. Accepts a valid CSS color string, including HEX and RGB.
border?	TooltipBorder		Specifies the border configuration options.
color?	string		Specifies the text color of the tooltip. Accepts a valid CSS color string, including HEX and RGB.
font?	string		Specifies the font of the tooltip.
format?	string		Specifies the format of the labels. Uses the format method of IntlService. The Area, Bar, Column, Funnel, Pyramid, Line, and Pie are represented by {0} as the value placeholder. The Bubble chart type uses the following value placeholders: {0} - x value, {1} - y value, {2} - size value, and {3} - category name. The Scatter and ScatterLine chart types use the following value placeholders: {0} - x value and {1} - y value. The Candlestick and OHLC chart types use the following value placeholders: {0} - open value, {1} - high value, {2} - low value, {3} - close value, and {4} - category name.
opacity?	number		Specifies the opacity of the tooltip.
padding?	number | Padding		Specifies the padding of the tooltip. A numeric value sets all paddings.
shared?	boolean		Determines whether the Chart displays a single tooltip for every category.
visible?	boolean		Determines whether the Chart displays the series tooltip. By default, the series tooltip is not displayed.