Regression - #12663 broke StatusStrip DarkMode coloring.

[KlausLoeffelmann]

.NET version

Hey @LeafShi1, @Olina-Zhang

Can you please make sure, if this change #12663 did not break the DarkMode Coloring (not HighContrast! I mean DarkMode.) in .NET 9?

Thanks.

Also @merriemcgaw, @Tanya-Solyanik FYI.

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

No response

Issue description

As in Description.

Steps to reproduce

As in Description.

[JeremyKuhne]

@KlausLoeffelmann can you please give details / links on how to validate?

[Olina-Zhang]

@KlausLoeffelmann @JeremyKuhne Here is current testing result for both of .NET 9.0 and .NET 10.0. Because the change #12663 is not ported to .NET 9.0, so the #12663 still reproduces in .NET 9.0, fixed in .NET 10.0. For DarkMode, runtime is in DarkMode, no affect.

.NET 10.0:

.NET 9.0.2:

[Olina-Zhang]

But for StatusStrip, now renderMode was changed to System(#12719), so have DarkMode issue for both of .NET 9.0 and .NET 10.0, we have a known issue: #11901

[KlausLoeffelmann]

Yeah, and that's an issue. We cannot have System for DarkMode.
What was the reason for changing it?