d>
  <td class=b><img src="../g/rgb16.bmp"></td>
  <td>A 16-bit image with the default color format: 5 bits each for red,
   green, and blue, and 1 unused bit.
   The whitest colors should (I assume) be displayed as pure white:
   <span style="background-color:rgb(255,255,255)">(255,255,255)</span>, not
   <span style="background-color:rgb(248,248,248)">(248,248,248)</span>.</td>
 </tr>

 <tr>
  <td>g/rgb16-565.bmp</td>
  <td>3</td>
  <td class=b><img src="rgb16-565.png"></td>
  <td class=b><img src="../g/r