shutterstock/rickshaw — pull request #489 by KATT (2014-11-03 15:20:15+00:00)
Title: transform both stroke/color properties on highlight

Ability to transform either the `stroke` or `color` when highlighting.

I use it roughly like this:

```js
var highlighter = new Rickshaw.Graph.Behavior.Series.Highlight({
graph: graph,
legend: legend,
transform: function(isActive, series) {
var obj = {};
if (isActive) {
obj.color = "rgba(255, 0, 0, 0.5)";
obj.stroke = "rgba(255, 0, 0, 0.5)";
} else {
obj.stroke = "rgba(0,0,0,0.1)";
obj.color = "rgba(0,0,0,0.05)";
}
return obj;
}
});
```

It's a non-breaking as it has backwards compatibility with `args.disabledColor`.