[Problem/Bug]: Printing when using dark mode

What happened?

In my app I support dark mode and I use the provided APIs to set the background dark or light accordingly.

Now, this version 3537.50 is fine. But when I update the NuGet package to the newer version I find that the background of what used to be white now also shows dark. It does not in 3537.50 (which is good).

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

142.0.3595.53

SDK Version

3537.50

Framework

Win32

Operating System

Windows 11

OS Version

10.0.26200

Repro steps

I tried to compensate by setting the "body" to white but even that is not OK because the actual page background shows dark. And print preview is funny when scrolling pages because it too has that darker border.

I have reverted to 3537.50 and the problem goes away.

Is there a regression with this?

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

Regression in newer SDK

Last working version (if regression)

3537.50 (newer is messed up)

AB#60411517