Ночной режим / Night mode

This plugin will allow you to easily and very quickly insert the counter code from the popular search engine Yandex Yandex Metrics into your website. In addition, you do not need to edit any files in your WordPress theme:, and the counter continues to work even when you change your active template.
Яндекс Метрика для WordPress

After activating the plugin, go to “Settings” Yandex Metrics in order to paste the code of your counter. All very simply and clearly.