[AccessD] Enabled controls not appearing grayed out?

I am wondering if everyone is experiencing this.

 

For controls that do not have a controlsource on my forms, when their
enabled property is false, they appear grayed out - but when there is a
controlsource (which makes them uneditable in any case) - they do not appear
grayed out?

 

I guess I don't see this as a problem per se, but it is a distinction that I
am not particularly enamored of, I just wondered if maybe it is my version
of Access (2013) which is misbehaving - as it seems to in other situations
from time to time.

 

Bill