_label_text_font</span> <span class='kw'>=</span> <span class='st'>"Helvetica"</span>,
  <span class='kw'>major_label_text_font_size</span> <span class='kw'>=</span> <span class='st'>"12pt"</span>,
  <span class='kw'>major_label_text_font_style</span> <span class='kw'>=</span> <span class='st'>"normal"</span>,
  <span class='kw'>major_tick_in</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,
  <span class='kw'>major_tick_line_alpha</span> <span class='kw'>=</span> <span class='fl'>1</span>,
  <