Display error of the toggle buttons

I have updated a page from 3.9 → 4 and I have noticed a display error.
At version 4.0.0-rc.1 the toggle buttons look strange.
I use Chrome on the iPhone under iOS 17

Only iPhone with Chrome? Or other browsers and environments as well?

The buttons also look incorrect under Safari (iPhone).
(I don’t use any additional custom-panel.css)

That still doesn’t quite answer my question. So this only affects iPhone, not Mac, Linux or Windows browsers?

Working fine for me on Mac with Firefox, Chrome & Safari.

I ONLY have the display problem on the iPhone under Chrome and Safari. The buttons look flawless on the desktop browsers. I don’t use Linux or Windows.

Please create an issue on GitHub! Thanks