| GD Version | string value describing the installed
        libgd version. | 
      
       | Freetype Support | boolean value.  TRUE
        if Freetype Support is installed. | 
      
       | Freetype Linkage | string value describing the way in which
        Freetype was linked. Expected values are: 'with freetype',
        'with TTF library', and 'with unknown library'.  This element will
        only be defined if Freetype Support evaluated to
        TRUE. | 
      
       | T1Lib Support | boolean value.  TRUE
        if T1Lib support is included. | 
      
       | GIF Read Support | boolean value.  TRUE
        if support for reading GIF
        images is included. | 
      
       | GIF Create Support | boolean value.  TRUE
        if support for creating GIF
        images is included. | 
      
       | JPG Support | boolean value.  TRUE
        if JPG support is included. | 
      
       | PNG Support | boolean value.  TRUE
        if PNG support is included. | 
      
       | WBMP Support | boolean value.  TRUE
        if WBMP support is included. | 
      
       | XBM Support | boolean value.  TRUE
        if XBM support is included. |