XDWGFADECTL system variable
Function Description:
The XDWGFADECTL system variable is used to control the fade degree for all DWG xref objects.
Type : Integer
Saved in : Registry
Initial value : 50
Range : -90 ~ 90
System Variable Value:
0 : DWG xref objects do not fade
>0 : when this value is a positive value, the fade degree is controlled by percentage up to 90%
<0 : when this value is a negative value, DWG xref objects do not fade, but the value is kept and it could be converted by changing its symbol.