The free Dark Reader extension turns most bright white sites, such as ZDNet (left side), darker (right side). With Dark Reader installed and active, the Gmail loading screen remains dark.
For example, even if you select the dark Gmail theme above, the initial Gmail loading screen remains white. The extension does an excellent job of making nearly all sites and pages dark, including some sites that offer only a partially dark mode ( Figure D). The free and open source Dark Reader extension may make the single most significant shift toward a dark screen experience than any of the steps above. Note that even with this dark theme selected, the system still displays the initial Gmail loading screen in full-color on a bright white background. Scroll down, then place your cursor over the theme represented by a solid black color, which should display the theme as Dark. To the right of the Theme, choose View All. Go to, sign in, then select the sprocket (in the upper-right) to access settings. The default light Twitter display is much brighter (on the left) than the Lights Out dark option (on the right). Many sites, such as Twitter, let you select a website-specific theme.
