2.4beta1 no math preview

[José Matos]

On Thu, 2023-01-19 at 17:55 -0500, Neal Becker wrote:
> Now on version 2.4.0-beta2, still no math preview.
> 
> Version 2.4.0-beta2
> (Sunday, December 11, 2022)
> 
> Qt Version (run-time): 5.15.8 on platform xcb
> Qt Version (compile-time): 5.15.8
> OS Version (run-time): Fedora Linux 37 (Workstation Edition)
> Python detected: python3 -tt

You need to restore the settings to activate the preview since by
default they are off (I think).

Se the other message on this subject.
-- 
José Abílio