plugin_description.xml

<library path="lib/librviz_map_editor">
  <class name="rviz_map_editor/Teleop"
         type="rviz_map_editor::TeleopPanel"
         base_class_type="rviz::Panel">
    <description>
      A panel widget allowing simple diff-drive style robot base control.
    </description>
  </class>
  <class name="rviz_map_editor/Imu"
         type="rviz_map_editor::ImuDisplay"
         base_class_type="rviz::Display">
    <description>
      Displays direction and scale of accelerations from sensor_msgs/Imu messages.
    </description>
    <message_type>sensor_msgs/Imu</message_type>
  </class>
  <class name="rviz_map_editor/Remove"
         type="rviz_map_editor::PlantFlagTool"
         base_class_type="rviz::Tool">
    <description>
      Tool for planting flags on the ground plane in rviz.
    </description>
  </class>
  <class name="rviz_map_editor/Line"
         type="rviz::LineTool"
         base_class_type="rviz::Tool">
    <description>
      Tool for planting flags on the ground plane in rviz.
    </description>
  </class>
</library>