[Bug]: Primary Button High Contrast doesn't work

[mohamedmansour]

Library

Web Components (@fluentui/web-components)

System Info

System:
    OS: Linux 6.8 Ubuntu 22.04.4 LTS 22.04.4 LTS (Jammy Jellyfish)
    CPU: (20) x64 Intel(R) Xeon(R) W-2155 CPU @ 3.30GHz
    Memory: 52.99 GB / 62.39 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Browsers:
    Chrome: 128.0.6613.84
  Packages:
    "@fluentui/web-components": "3.0.0-beta.39",
    "@microsoft/fast-element": "2.0.0-beta.26",

Are you reporting an Accessibility issue?

None

Reproduction

https://typescript-p6tozy.stackblitz.io

Bug Description

The primary high contrast should be:

background: Highlight;
color: HighlightText;
forced-color-adjust: none;

Currently:

But should be:

Logs

No response

Requested priority

Blocking

Products/sites affected

No response

Are you willing to submit a PR to fix?

yes

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.