### 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

17.0.0

### What operating system are you using?

Windows

### Operating System Version

Windows 10 Version 21H1

### What arch are you using?

x64

### Last Known Working Electron version

14.2.3

### Expected Behavior

background should transparent if background is #00000000

### Actual Behavior

has a white background

### Testcase Gist URL

_No response_

### Additional Information

_No response_
shell/browser/api/electron_api_web_contents.cc
content::RenderFrameHost* render_frame_host,
    const GURL& security_origin,
    blink::mojom::MediaStreamType type) {
  auto* ontents =
      content::WebContents::FromRenderFrameHost(render_frame_host);
  auto* permission_helper =
      WebContentsPermissionHelper::FromWebContents(ontents);
  return permission_helper->CheckMediaAccessPermission(security_origin, type);
}
void WebContents::RequestMediaAccessPermission(
    content::WebContents* ontents,
    const content::MediaStreamRequest& request,
    content::MediaResponseCallback callback) {
  auto* permission_helper =
      WebContentsPermissionHelper::FromWebContents(ontents);
  permission_helper->RequestMediaAccessPermission(request, std::move(callback));
}
content::JavaScriptDialogManager* WebContents::GetJavaScriptDialogManager(
    content::WebContents* source) {
  if (!dialog_manager_)
    dialog_manager_ = std::make_unique<ElectronJavaScriptDialogManager>();
  return dialog_manager_.get();
}
void WebContents::OnAudioStateChanged(bool audible) {
  Emit("-audio-state-changed", audible);
}
void WebContents::BeforeUnloadFired(bool proceed,