Google has stated that they will be adding support for Windows 10 Dark Mode in an upcoming version of the Chrome browser. Windows 10 allows you to set a system wide Light or Dark mode that causes all supported apps to automatically switch to the desired theme. Chrome developer Peter Kasting recently suggested that users install a Dark theme until support is finished being added to the desktop browser. The most obvious hack is to use the default incognito color scheme in normal mode if the system is in dark mode. For mobile Chrome users who do not have the ability to add themes and extensions, Kasting did not have any insight as to when a dark mode would be added.
Source: https://www.bleepingcomputer.com/news/google/google-chrome-to-support-windows-10s-dark-mode-setting/