Use this procedure if you want to manually disable a display theme. A disabled display theme is indicated by a marker through the legend. This does not prevent the display theme legend from plotting on your sheet.
If you attach or overlay a drawing as an external reference (xref) in a project, all display themes in the xref are imported into the host drawing by default. If the host drawing has existing display themes, then the active display theme in the host drawing overrides any active display theme in the xref.
Disabled display theme