Link coloring

[Weathermap Spam <weathermap-spam-1@xxxxxx>]

Hi,

First, I think php-weathermap is really cool.  The editor makes it easy 
to position nodes - that alone makes my life easier.

Quick question - would it be hard to make the coloring of the links 
match the percentage of traffic on the link?  For example, if the link 
is running at 50%, then the color will only show on the first 50% of the 
link that is drawn on the map?

I have a home grown tool that I have used that does this, and it is 
pretty useful for quickly seeing the amount of traffic on the link.

Thanks,
Mickey