How to remove background color and color example from tooltip in chart.js?

@herminia_bruen 

To remove the background color and change the text color of tooltips in Chart.js, you can customize the tooltip options in the chart configuration. Here's how you can do it:

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var myChart = new Chart(ctx, {
    type: 'bar',
    data: data,
    options: {
        tooltips: {
            backgroundColor: 'rgba(0,0,0,0)', // Set background color to transparent
            bodyFontColor: '#ffffff' // Set text color to white
        }
    }
});

In the above example, we set the backgroundColor property of the tooltips object to rgba(0,0,0,0), which represents a transparent background color. We also set the bodyFontColor property to #ffffff, which represents white text color.

By customizing the tooltip options in the chart configuration, you can easily remove the background color and change the text color of tooltips in your Chart.js chart.