I made a dark theme on my social media network. You can download the .css file and get the data here (82https://lettuce-it.tribe.so/post/dark-theme-css-code-modified-so-anything-related-with-af0a0a-is-replaced-wi--5f454f31e7590040c57e92d382)82
It's black and purple, but you can change it you know.
It is kinda buggy, yet it will cover almost everything with your tribe network. You should try it out.