span>,
  <span class='kw'>height</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>tooltip</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>auto_highlight</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>,
  <span class='kw'>highlight_colour</span> <span class='kw'>=</span> <span class='st'>"#AAFFFFFF"</span>,
  <span class='kw'>legend</span> <span class='kw'>=</span> <span class='no'>F</span>,
  <span class='kw'>legend_options</s