p-selectButton: Can not add a overwritten class

[ClaraKrchr]

Describe the bug

I'm working on prime ng in v16, before the version update of angular (I'm now in v16) I was working on a p-selectButton which had a different background color depending on the id of the displayed object. Since the migration, my buttons no longer change color, I no longer even see my class in the DOM.
I contacted the prime ng discord, they told me it was a regression and to create an issue ticket here

Environment

I work on visual studio code and with edge.

Reproducer

https://stackblitz.com/edit/github-kvdet4?file=src%2Fapp%2Fapp.component.html

Angular version

16.2.10

PrimeNG version

16.5.1

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

16.16.0

Browser(s)

edge

Steps to reproduce the behavior

just open the DOM and you will not see my class

Expected behavior

No response

[zzzaaa]

Your example doesn't work (compile error) You forgot to attach a models array. :)

[github-actions]

We're unable to replicate your issue, if you are able to create a reproducer by using PrimeNG Issue Template or add details please edit this issue. This issue will be closed if no activities in 20 days.

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you with the latest version, please leave any comment, and we will keep it open. We are sorry that we have not been able to prioritize it yet. If you have any new additional information, please include it with your comment!

[github-actions]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please create a new issue with up-to-date information. Thank you for your understanding!