Save Address Modal has visual glitch on the more actions button

[theshadesofsummer]

Preliminary Checks

• I have read and understood the important section above.
• I have searched existing issues and avoided creating duplicates.
• I am not filing an enhancement request.
• I have checked that this issue cannot be reproduced on Mozilla Firefox.
• I have checked that this issue can be reproduced once I removed all my Mods and Custom CSS.

What happened?

It seems that I have encountered a little visual glitch in the "Save Address" Modal in the newest version of the Zen browser (Version 1.21.9b (64-bit)) on Windows 11.
The more actions button (with the three dots) and its corresponding popover seem to have weird dots in the background (black on the button, greyish on the popover).
On further tests it seems that the buttons are still functional and redirect you either to the settings or to the learn more page, so this looks like purely a visual bug, where the functionality still remains.

Expected behavior

The button and popover look normal

Actual behavior

The button and popover look glitched

Steps to reproduce

1. Ensure you have the "Save and autofill addresses" in the Autofill section of the Settings enabled.
2. Go to any page where you must input your address (or change/update your address).
3. Save your address on that page, so the browser triggers the "Save Address" modal.
4. See the button and the popover when clicking on it.

Screenshots and videos

(The screenshots were from my first encounters with my Extensions and Zen Mods enabled, though I reproduced it with all of them turned off)

Just the more actions button (PI was hidden):

Including the popover from the more actions button (PI was hidden too):

Version

1.21.9b

What platform are you seeing the problem on?

Windows - x64

What component is this issue related to?

URL Bar

Relevant log output if applicable