DevTools Theme: Pure Void is a simple Chrome DevTools theme with a black background. This theme is designed to provide a sleek and stylish look to the DevTools interface.

To install the theme, you need to follow a few simple steps. First, navigate to chrome://flags and find Developer Tools Experiments. Toggle it to Enabled and then reload Chrome. Next, in DevTools, click the three dots menu and go to Settings -> Experiments. Select Allow UI Themes. Finally, set the theme to Dark Mode by going to Preferences (In DevTools settings itself) -> Appearance -> Theme and selecting Dark.

Once the theme is installed and set to Dark Mode, you can enjoy the new look of your DevTools interface. The black background gives it a modern and professional appearance, making it easier to focus on your development tasks.

If you're looking to customize your Chrome DevTools interface, DevTools Theme: Pure Void is a great option. It's free to use and can be easily installed following the provided instructions.