Row header border line of the DataGridView control has very low luminosity contrast ratio

[SergeySmirnov-Akvelon]

.NET Core Version:

• .NET Core SDK: 7.0.0-alpha.1.21512.1

Have you experienced this same bug with .NET Framework?:

• Yes

Repro steps:

1. Create a Form with a DataGridView.
2. Add multiple columns to a DataGridView.
3. Add several rows to the DataGridView.
4. Set DataGridView.RightToLeft = RightToLefYes
5. Run the application.

Actual behavior: Row header border line of the DataGridView control has very low luminosity contrast ratio.

RightToLeft = Yes:

RightToLeft = No:

Expected behavior: Luminosity contrast ratio of the row header border line of the DataGridView control should be greater than 3:1.

[elachlan]

@Olina-Zhang I think this might have been resolved in another issue/pr. Can your team please re-test?

[Olina-Zhang]

It still repro in the latest .Net 9.0 SDK build: 9.0.100-alpha.1.24053.14.