[Webkit-unassigned] [Bug 255596] New: Web app installed to home screen receives a black border in the icon

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255596

            Bug ID: 255596
           Summary: Web app installed to home screen receives a black
                    border in the icon
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jespertheend at gmail.com

Created attachment 465961

  --> https://bugs.webkit.org/attachment.cgi?id=465961&action=review

Screenshot of Narrow One installed to the home screen on iOS.

Steps to reproduce:

1. Go to https://narrow.one/
2. Add the page to the home screen.

Please see the attached screenshot. The black border is not supposed to be there. None of the images in the web app manifest contain a black border.

The manifest for narrow.one can be found at https://narrow.one/static/manifest.json
It has 6 icons:
- 2048x2048 webp
- 2048x2048 jpeg
- 1024x1024 png

and three more that are similar but maskable.

I think this regressed in iOS 16.4 because I'm pretty sure it was working a few months ago.

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