Could you make the lines in the build graph change width on hover?

[thebjorn]

Goals

It can be very difficult to see where all the lines start/end in a large repo, this will make it easier to visualize.
It would be nice if an SVG file was automatically generated when possible instead of just a .dot file.

Non-goals

Background

I do something similar in pydeps a package to visualize import order in python.

Proposal

All that is needed is to add the following at the beginning of the svg output.

<svg width="2438pt" height="764pt"
 viewBox="0.00 0.00 2438.00 764.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <defs>
        <style>
            g.edge:hover path {
                stroke-width: 5px !important;
            }
        </style>
    </defs>
...