BED file Track attributes

track
name=H3K9me3_cystoblast
description="Cystoblast H3K9me3 IP, Chipseq, 36-mer Coverage, Lane 1"
graphType=bar
visibility=full
autoScale=off
viewLimits=0:35
yLineMark=30
yLineOnOff=on

track name=H3K9me3_cystoblast description="clc H3K9me3 peaks cystb" graphType=bar visibility=full autoScale=off viewLimits=0:35 yLineMark=30 yLineOnOff=on 

In the main part of the file there are three required fields.

chr9    4484218    4475113

there are 9 additional fields that can be specified:

name
score
strand
thickStart
thickEnd
itemRgb
blockCount
blockSizes
blockStarts