[Arnav7x]

What changed / motivation?

Added support for the following progress pseudo-elements in StyleX's ESLint validation and TypeScript style definitions:

• ::-webkit-progress-bar
• ::-webkit-progress-value
• ::-moz-progress-bar

These are valid CSS pseudo-elements used to style different parts of native progress indicators. Without this support, the ESLint plugin reports them as unknown pseudo-elements, preventing their use in StyleX styles.

Added a regression test covering all three pseudo-elements to ensure they are recognized correctly.

Linked PR/Issues

Fixes #1967

Additional Context

Tests

• All 9 ESLint plugin test suites passed.
• All 569 tests passed.
• git diff --check completed successfully.

Pre-flight checklist

• I have read the [Contribution Guidelines](https://github.com/facebook/stylex/blob/main/.github/CONTRIBUTING.md).
• Performed a self-review of my code.

[meta-cla]

Hi @Arnav7x!

Thank you for your pull request and welcome to our community.

Action Required

In order to merge any pull request (code, docs, etc.), we require contributors to sign our Contributor License Agreement, and we don't seem to have one on file for you.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at [email protected]. Thanks!

[vercel]

@Arnav7x is attempting to deploy a commit to the Meta Open Source Team on Vercel.

A member of the Team first needs to authorize it.

[henryqdineen]

@Arnav7x are you able to sign the CLA? Thanks!

[Arnav7x]

@Arnav7x are you able to sign the CLA? Thanks!

Yep, just did. Works fine for me.