dotnet
Luminosity ratio of the focus indicator for the table rows with background is less than required ratio 3:1: A11y_WinForm.NETRuntime_Non-TextContrast
"Please do not close this bug. This bug should only be closed by TCS, C+AI Accessibility or the Divisional Driver."
GitHub Tags:
#A11ySev2; #A11yTCS; #WCAG2.1.1; #Win32; #DesktopApp; #Win11; #WinForms .NET Runtime; #BM_WinForms.NETRuntime_Win32_June2025; #Keyboard; #A11yMAS;
Environment Details:
Microsoft Windows 11 Enterprise (24H2) Build on 26100.4061
Repro Steps:
- Open SQL Server Migration Assistant for oracle.
- Splash screen appears and SSMA is launched
- Navigate to the 'Tools' menu and select it.
- Navigate to 'Project settings menu item and select it.
- Navigate to "Type Mapping" button select it.
- Navigate all controls under "Type Mapping" button.
- Verify whether luminosity ratio for the focus indicator with background is less than required ratio or not.
Actual Result:
Luminosity ratio of the focus indicator for the table rows with background is less than required ratio 3:1.
Expected Result:
Luminosity ratio of the focus indicator for the table rows with background should satisfy the required ratio 3:1.
User Impact:
Low vision users will be impacted. Luminosity contrast ratio for focus indicator is less than minimum required ratio i.e. 3:1. Due to this issue user will be unable to track the keyboard focus easily.
Sample App used:-
[[[RadioButtonFocusDemo.zip](https://microsoftapc-my.sharepoint.com/:u:/g/personal/v-kkumar2_microsoft_com/ETnjjCF0jsZFiF_P9fDDmyIBlb80rXpmeIDu2or6768kVg?e=M4uY2O)](https://microsoftapc-my.sharepoint.com/:u:/g/personal/v-kkumar2_microsoft_com/ETnjjCF0jsZFiF_P9fDDmyIBlb80rXpmeIDu2or6768kVg?e=cCZLff)](https://microsoftapc-my.sharepoint.com/:u:/g/personal/v-kkumar2_microsoft_com/ETnjjCF0jsZFiF_P9fDDmyIBlb80rXpmeIDu2or6768kVg?e=wBZc6R)
Attachment:
It looks like the sample project is a .NET 9 project, @Olina-Zhang can you verify the behavior in .NET 10? @LeafShi1 we can take a fix for 10 but we wouldn't change earlier releases for this.
The sample project is a .NET8.0 project
This problem does not recur in the .net10.0 project
@merriemcgaw It cannot repro in .NET 10 & 9, was fixed by GH PR: https://github.com/dotnet/winforms/pull/10176.
@kupatkar99 - this is fixed in the current versions, and this issue can be closed.
@LeafShi1, they are migrating to .NET 8 and this is a grade blocking issue. Let's go ahead and service this for the next .NET 8 update. Please let me and @KlausLoeffelmann know if there was a substantial change between the two versions and we will evaluate risk.
@LeafShi1, they are migrating to .NET 8 and this is a grade blocking issue. Let's go ahead and service this for the next .NET 8 update. Please let me and @KlausLoeffelmann know if there was a substantial change between the two versions and we will evaluate risk.
There are no major differences between the two versions. Please review the backport PR https://github.com/dotnet/winforms/pull/14001
Verified the issue with .NET SDK 8.0.23 Test Pass build, the issue has been fixed as below screenshot.
