The Dark Mode is an excellent extension for VK.com. The entire text is displayed in black color, and all links are displayed in a gray color. Moreover, it allows you to set an option to put VK in "light mode" on start up.

Now you don't need to use your smartphone to access the full functionality of VK, as there is an option to set it in your browser. With this extension you can set VK to the dark mode as soon as you log in, and keep it that way all day.

This will have an impact on your productivity, but at the same time, you will be able to save on electricity. The Dark Mode is optimized to work with minimal battery drain.

So, if you feel like you can't have a white screen at night, install the extension and try it out.