treated as transparent --&gt;
        &lt;!ATTLIST "TransparentColor" "value" #CDATA #REQUIRED&gt;
          &lt;!-- Data type: List of Integer --&gt;

      &lt;!ELEMENT "TileTransparencies" (TransparentTile)*&gt;
        &lt;!-- A list of completely transparent tiles --&gt;

        &lt;!ELEMENT "TransparentTile" EMPTY&gt;
          &lt;!-- The index of a completely transparent tile --&gt;
          &lt;!ATTLIST "TransparentTile" "x" #CDATA #REQUIRED&gt;
            &lt;!-- The tile's X index --&gt;
     