Argument for forcing Dark Mode

[kriiv]

I'm trying to force dark mode when rendering HTML and screenshotting.

Code is as follows however still not seeing dark mode at all:

Browsershot::html($html_content)
                ->fullPage()
                ->disableJavascript()
                ->addChromiumArguments(['--force-dark-mode', '--enable-features=WebContentsForceDark'])
                ->save($screenshot_path);

Any ideas for arguments that do work?

[AlexVanderbist]

Hey, we'll tag this in a minute: #890