code: public static TileSheetsConfig imports(Media configSheets)
      {
          final Xml nodeSheets = new Xml(configSheets);
  
          final Xml nodeTileSize = nodeSheets.getChild(NODE_TILE_SIZE);
          final int tileWidth = nodeTileSize.readInteger(ATT_TILE_WIDTH);
          final int tileHeight = nodeTileSize.readInteger(ATT_TILE_HEIGHT);
  
          final Collection<String> sheets = importSheets(nodeSheets);
  
          return new TileSheetsConfig(tileWidth, tileHeight, sheets);
      }
docs: Import the sheets data from configuration.
  
  @param configSheets The file that define the sheets configuration (must not be <code>null</code>).
  @return The tile sheet configuration.
  @throws LionEngineException If unable to read data.