★How to restore layer properties of reference drawings in ZWCAD

Issue: 

If the layer color of an external reference drawing is modified, the display color will differ from the original source file.
How can these properties be restored to their original state?

Solution:

1. Click the menu Format → Layer (or execute the LAYER command) to open the Layer Properties Manager.

2. Within Filters, select the target reference drawing under Xref.
   Select the desired layers from the list, right-click, and select Reset Xref Layer Properties from the context menu.
   Restore properties for all or specific layers as required.