[Gmod-ajax] customize a VCF CanvasVariants track to color variants

[Ke J. <bio...@gm...>]

Hi,

I'm testing the example given in the configuration guide to color
homozygous variants blue and heterozygous variants red for a VCF variant
track. After using the exact same code given, I saw rather interesting
behavior for the test track. From the zoom out view, the homozygous
variants are black and heterozygous variants are blue. But after zooming in
both become black. Also, mousing over the feature turns them grey. I've
tried to use different color schemes than red/blue in the example, and
different 'if' statement in the code to determine the GT string value, but
was not able to change the colors at all. Is there anyone experiencing
these and having any advices?

Thanks!

Ke

-- 
Ke Jiang, Ph.D.
Post-doctoral Fellow
Delbruck Laboratory
Cold Spring Harbor Laboratory
Cold Spring Harbor, NY 11724