 <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'>layer_id</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>id</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>palette</span> <span class='kw'>=</span> <span class='st