.</dd>
          <dt class="code">JBrowse/View/Track/Wiggle/Density</dt>
          <dd>Shows quantitative data as a "heatmap" plot, which by default draws regions with positive scores as progressively more intense blue, and negative scores as progressively more intense red.  See the <a href="http://gmod.org/wiki/JBrowse_Configuration_Guide#Wiggle_track_configuration_options">JBrowse wiki</a> for configuration options, including how to change the color-change point (<span class="code">bicolor_pivot</span>), 