Is there an existing issue outlining your problem?

• I am using the latest version of the provided userstyle.
• I have searched the existing issues and they do not solve my problem.

What userstyles are you seeing the problem on?

lbl:pinterest

Describe your problem.

I'm not sure if we care about theming mobile versions of sites, but when using Firefox on Android 11 with the Stylus extension installed, the popups for saving pins are unthemed.

Attach screenshots.

What browser(s) are you seeing the problem on?

Firefox 138.0

Any additional comments?

No response