FontIcon and SymbolIcon has weird padding on Windows 10

[HO-COOH]

Describe the bug

FontIcon and SymbolIcon has weird padding that makes it offset to its center in its container. And this issue only seems to happen on Windows 10 with WinUI3, not with WinUI2.

Steps to reproduce the bug

1. Use this xaml in WinUI3 project

        <Button Padding="0">
            <FontIcon Glyph="&#xE77;"/>
        </Button>

You got

2. Use this xaml in WinUI3 project

        <Button Padding="0" HorizontalAlignment="Center">
            <SymbolIcon Symbol="Accept"/>
        </Button>

You got
.

In UWP with WinUI2, with the same xaml, the result it expected.

Expected behavior

No response

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.4.2: 1.4.231008000

Windows version

Windows 10 (1809): Build 17763

Additional context

This issue is so universal, that it also bugged WinUI3 Gallery.

[kmgallahan]

Shows fine for me on W10 Build 19045.3693:

Windows 10 (1809): Build 17763

Your version of Windows has been unsupported for 2-3 years now.

https://learn.microsoft.com/en-us/lifecycle/products/windows-10-home-and-pro

https://learn.microsoft.com/en-us/lifecycle/products/windows-10-enterprise-and-education

[HO-COOH]

Shows fine for me on W10 Build 19045.3693:

Windows 10 (1809): Build 17763

Your version of Windows has been unsupported for 2-3 years now.

https://learn.microsoft.com/en-us/lifecycle/products/windows-10-home-and-pro

https://learn.microsoft.com/en-us/lifecycle/products/windows-10-enterprise-and-education

I am aware of this. But since WinUI3 is labeled support down to 17763, I need to ensure the compatibility to the lowest version I want to support. So I want to know if this issue comes from the Segoe MDL2 Assets system font. If that is the case, I might as well bundle a Fluent Icon font instead

[ranjeshj]

Will share this info with the font team.

[Jay-o-Way]

I'm gonna take a quick, wild guess and say this is caused by old OS, or maybe old version of .NET or framework or something like that. Also, I know that SymbolIcon (used to?) uses MDL2 and deprecated icon codes. See #6409 and MicrosoftDocs/winrt-api#2363. I'll have to search to see if Microsoft has fixed this recently...

[gegao18]

Thanks for reporting this. Since the target version of Windows has been out-of-support for years now, this bug is out-of-scope for the focus of the team.