bug#57970: 29.0.50; Create new defgroup for pixel-scroll.el

[Stefan Kangas]

Version: 29.1

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Stefan Kangas <stefankangas@gmail.com> writes:
>
>> The options from pixel-scroll.el are in the `mouse' and `scrolling'
>> groups now.  Especially the former is very crowded as it is, so I think
>> we should add a separate defgroup for pixel-scroll.el.
>
> Makes sense to me.

Now done on master (commit b6c725ba98a).