Hello,

I can't make work the marker.line.colorscale property. I'm not sure how it should work, but what I can say is:

• using the colorscale property on lines as it is used on markers has no effect
• if we use the property on a scatter graph with both lines and markers we have a bug (or I'm not using it properly?)

So is it possible to color a line following a colorscale on a scatter graph? How we do it?

Moreover the documentation is confusing, as it states the property line is under the mark one:

Sets the colorscale and only has an effect if marker.line.color is set to a numerical array.

Actually it seems not to be the case: http://codepen.io/anon/pen/OXJErp. Should the documentation states line.color instead?

I can do a PR to fix the doc, but I want to be sure I'm not misleading first.