Subject: Re: bug#50141: Current part of emacs red, other parts blue

From: Gregory Heytings <[email-masked]>
Date: Sat, 21 Aug 2021 17:53:58 +0000

>> I didn't know about the :filtered face attribute.
>
> It's a relatively new addition, and is rarely used.
>

FWIW, I use it all the time, through the auto-dim-other-buffers package.