[Buildbot-devel] linking an image created during a buildstep in the waterfall?

[Don Fike]

I have a buildstep that calls a simple shell script that generates a png 
chart.  I would like to link to this chart.png in the waterfall.
I tried using logfiles={"chart": "chart.png"}, which works, however the 
chart is displayed in ASCII instead of an image.
I guess I need to use addURL but I'm not sure how to go about this.
Can someone suggest the best approach for linking to a png, generated on 
a slave, within the waterfall display for that step?

Thanks,

Don