Dark theme for smotret-anime.com (also known as smotret-anime.online, smotret-anime-365.ru, smotretanime.ru, smotret-anime.ru and anime365.ru) and hentai365.ru.
Starting from 1.0.0 release added option to choose your own background image (and some minor features for it). To do so, select Custom background image option, and then put url() to your image to the next field (e.g. url(https://bakamonster95.files.wordpress.com/2018/01/56380564_p0.jpg)).
Install Stylus for either Firefox, Chrome or Opera and then install the style:
Install the usercss which supports automatic updates and customization.
Feel free to contribute, create issues, forks etc.