Added area screenshot. Removed settings screenshots.

gallery.html

@@ -99,28 +99,16 @@
             <p>Shimano Di2 gear ratio/shifts graph</p>
           </li><li>
             <a href="gallery/greatcircle.png">
-              <img src="gallery/greatcircle_prev.png" width="200" height="154" alt=""/>
+              <img src="gallery/greatcircle_prev.png" width="200" height="279" alt=""/>
             </a>
             <h3>Great circle paths</h3>
             <p>GPXSee showing flight routes as great circle paths.</p>
           </li><li>
-            <a href="gallery/pdf_export.png">
-              <img src="gallery/pdf_export_prev.png" width="200" height="264" alt=""/>
+            <a href="gallery/area.png">
+              <img src="gallery/area_prev.png" width="200" height="266" alt=""/>
             </a>
-            <h3>PDF export</h3>
-            <p>PDF export dialogue on Linux</p>
-          </li><li>
-            <a href="gallery/settings_mac.png">
-              <img src="gallery/settings_mac_prev.png" width="200" height="154" alt=""/>
-            </a>
-            <h3>Appearance settings</h3>
-            <p>Appearance settings on OS&nbsp;X</p>
-          </li><li>
-            <a href="gallery/settings_win.png">
-              <img src="gallery/settings_win_prev.png" width="200" height="148" alt=""/>
-            </a>
-            <h3>Data settings</h3>
-            <p>Data settings on Windows 7</p>
+            <h3>Areas</h3>
+            <p>GPXSee showing areas (polygons).</p>
           </li>
         </ul>