Microsoft's Chromium-based Edge inherited a lot of features and capabilities we know from the Google Chrome browser, but in some ways, it's still trying to take back some of those in previous versions of Edge. Dark mode, for example, is still under work, as Microsoft has promised that it will bring it to every section of the browser settings.
Luckily, if you're in the Canary channel, you should be one step closer to the final look of dark mode in the Chromium-based Edge. Today, Microsoft rolled out build 184.108.40.206 to Insiders in this channel, and as promised, every page in the browser's settings now displays a dark theme. This includes not only every sub-section of the settings, but also favorites management, history, and downloads.
At first glance, nothing seems to be terribly wrong with the implementation of the dark theme, and the new look should come to those in the Dev channel with next week's build.
With this added improvement, plus the fact that the browser is now available to try on Windows 7, 8, and 8.1, Microsoft is inching ever closer to its desired quality standards so that the Beta channel can go live. It's worth pointing out that the Edge Beta leaked over a month ago, and it's been getting weekly updates, similarly to the Dev version.