On Sun, 2 Jan 2022 at 07:15, Po Lu <luangruo@yahoo.com> wrote:

>  Custom should be understandable for everyone, and I don't see why it
> isn't.  It works reasonably similarly to, for example, the Mozilla
> Firefox about:preferences page.
>

 Some people only feel that they understand a program when they are
able to make a good mental model of how it works. And to me customize
is a big black box with several smaller black boxes inside, and with
no visible tools to let me inspect its data structures.

  [[]], E.