[Genome] help with custom tracks and colors (useScore)

[Smith, David]

Hi guys, thank you for supporting your marvelous tool.  I am having
trouble with displaying color shading with the useScore=1 tag in the
track line.  My format is .GFF and I'm on the mouse genome, latest
build.

The problem is that all of the colors look to be the same shade for
different scores (ranged 1-1000) and it doesn't matter if it's black
(color=0,0,0) or blue (0,60,120).  However, if I add UCSC's GC Percent
track, I can see all of the different shades of black and gray there.

Here is some sample code.  I just pasted this into the box where it says
"Add Custom Tracks" after I "Manage Custom Tracks".  This code neither
works as a .gff file upload.  Does the genome browser not take .gff
format for its color shading?  The following code appears as a dark gray
line in the "test of colors" track.

track name="test of colors" description="test of colors" useScore=1
color=0,0,0
chr7	blah	name	50000001	50000200	1	+
0	T
chr7	blah	name	50000201	50000400	334	+
0	T
chr7	blah	name	50000401	50000600	667	+
0	T
chr7	blah	name	50000601	50000800	1000	+
0	T

Thanks for any help that you can pass along.

"EMF <COH.ORG>" made the following annotations.
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