Fixed appearance images to use Doxygen @image command (Doxygen will now copy files automatically), and cleaned up some more overviews.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72871 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/doxygen/Doxyfile

@@ -92,7 +92,7 @@ ALIASES += endFlagTable="</div>\n"
 # creates appearance section: this should be used for all main GUI controls
 # that look different in different ports. genericAppearance can be used for the
 # controls that always look the same.
-ALIASES += appearance{1}="\htmlonly<div class="appearance"><span class='appearance'>Appearance:</span><table><tr><td>\endhtmlonly\n\image html wxmsw/\1 \"wxMSW Appearance\"\n\htmlonly</td><td>\endhtmlonly\n\image html wxgtk/\1 \"wxGTK Appearance\"\n\htmlonly</td><td>\endhtmlonly\n\image html wxmac/\1 \"wxOSX Appearance\"\n\htmlonly</td></tr></table></div>\endhtmlonly"
+ALIASES += appearance{1}="\htmlonly<div class="appearance"><span class='appearance'>Appearance:</span><table><tr><td>\endhtmlonly\n\image html appear-\1-msw.png \"wxMSW Appearance\"\n\htmlonly</td><td>\endhtmlonly\n\image html appear-\1-gtk.png \"wxGTK Appearance\"\n\htmlonly</td><td>\endhtmlonly\n\image html appear-\1-mac.png \"wxOSX Appearance\"\n\htmlonly</td></tr></table></div>\endhtmlonly"
 ALIASES += genericAppearance{1}="\htmlonly<div class="appearance"><span class='appearance'>Appearance:</span><table class='appearance'><tr><td>\endhtmlonly\n\image html generic/\1 \"Generic Appearance\"\n\htmlonly</td></tr></table></div>\endhtmlonly"
 
 # aliases for the creation of "named member groups"