Hello, How can I do it?

[DimaKukhta]

Hello everyone, please tell me. How can I make a graph like this? That is, a certain data graphic should be highlighted.
For example, I have data like this:

[
  {
    value: 1,
    isSelected: false
  },
{
    value: 5,
    isSelected: false
  },
{
    value: 6,
    isSelected: true
  }
]

That is, in an object where the isSelected flag is true. I need to add a border as in the chart, only for data where the isSelected flag is true. I know that such a border can be created on the "hover" event. For example hoverBorderWidth and others. But how to make the chart's border increase only for specific data?
Hopefully clear, thanks.

[LeeLenaleee]

You can write a custom plugin for this using the afterDraw hook. Or you can choose to use extra datasets which make all backgorundColors transparent except for the one you need.

https://jsfiddle.net/Leelenaleee/2rjntw9L/9/