### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a bug report that matches the one I want to file, without success.

### Electron Version

16.0.3

### What operating system are you using?

Windows

### Operating System Version

Windows 10 version 1803

### What arch are you using?

x64

### Last Known Working Electron version

16.0.3

### Expected Behavior

view.setBackgroundColor("#FF000000")

### Actual Behavior

The background color is transparent

### Testcase Gist URL

_No response_

### Additional Information

MacOS is work
Windows is not work.
shell/browser/api/electron_api_web_contents.cc
: ontents(contents) {}
  base::WeakPtr<WebContents> ontents;
};
const void* kElectronApiWebContentsKey = &kElectronApiWebContentsKey;
const char kRootName[] = "<root>";
struct FileSystem {
  FileSystem() = default;
  FileSystem(const std::string& type,
             const std::string& file_system_name,
             const std::string& root_url,
             const std::string& file_system_path)
      : type(type),
        file_system_name(file_system_name),
        root_url(root_url),
        file_system_path(file_system_path) {}
  std::string type;
  std::string file_system_name;
  std::string root_url;
  std::string file_system_path;
};
std::string RegisterFileSystem(content::WebContents* ontents,