mmary">select font face.</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#font_size">font_size (size)</a></td>
	<td class="summary">set font size.</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#pixel">pixel (x, y)</a></td>
	<td class="summary">draw single pixel (requires integer x/y, fill afterwards).</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href="#export_screenshot">export_screenshot (filename)</a></td>
	<td class="summary">export screenshot</td>
	</tr>
	<tr>
	<td class="name" nowrap><a href