The MULTILEADER leader is a very complex entity and has also some weird and unique properties.

  1. MULTILEADER has the alias name MLEADER which is accepted by any reliable CAD application, but all of them create the entity as MULTILEADER
  2. uses raw-color values to define colors
  3. creates a complex context data structures beyond simple tags inside the subclass AcDbMLeader

Example for ezdxf.entities.MLeaderContext created by BricsCAD: