The jdbc_network_query element, which is used to define a network theme, has the following definition:

<!ELEMENT jdbc_network_query (#PCDATA) >
<!ATTLIST jdbc_network_query
  asis (TRUE|FALSE) "FALSE"
  network_name CDATA #REQUIRED
  network_level CDATA #IMPLIED
  link_style CDATA #IMPLIED
  direction_style CDATA #IMPLIED
  bidirection_style CDATA #IMPLIED
  direction_position CDATA #IMPLIED
  direction_markersize CDATA #IMPLIED
  direction_multimarker (TRUE|FALSE) "FALSE"
  link_labelstyle CDATA #IMPLIED
  link_labelcolumn CDATA #IMPLIED
  node_style CDATA #IMPLIED
  node_markersize CDATA #IMPLIED
  node_labelstyle CDATA #IMPLIED
  node_labelcolumn CDATA #IMPLIED
  path_ids CDATA #IMPLIED
  path_styles CDATA #IMPLIED
  path_labelstyle CDATA #IMPLIED
  path_labelcolumn CDATA #IMPLIED
  analysis_algorithm CDATA #IMPLIED
  shortestpath_style CDATA #IMPLIED
  shortestpath_startnode CDATA #IMPLIED
  shortestpath_endnode CDATA #IMPLIED
  shortestpath_startstyle CDATA #IMPLIED
  shortestpath_endstyle CDATA #IMPLIED
  withincost_startnode CDATA #IMPLIED
  withincost_style CDATA #IMPLIED
  withincost_cost CDATA #IMPLIED
  withincost_startstyle CDATA #IMPLIED
  datasource CDATA #IMPLIED
  jdbc_host CDATA #IMPLIED
  jdbc_port CDATA #IMPLIED
  jdbc_sid CDATA #IMPLIED
  jdbc_user CDATA #IMPLIED
  jdbc_password CDATA #IMPLIED
  jdbc_srid CDATA #IMPLIED
  jdbc_mode (thin|oci8) "thin"
>

For detailed usage and reference information about network themes, see Network Themes.