You cannot have # unescaped in a query string. This only work in browsers as they try to fix mistakes. The docs and example URLs needs to be fixed. I would just drop the #. You can just detect the HEX colors without it and add it before using them in the CSS.
Maybe have a randomFgBg kinda option that would just use a random predefined combination that looks good. You could for example get it from https://github.com/Jam3/nice-color-palettes
https://time.pablopunk.now.sh should have a link back to the repo. Probably only visible when the mouse moves, so it won't be visible when it's a desktop wallpaper.
#unescaped in a query string. This only work in browsers as they try to fix mistakes. The docs and example URLs needs to be fixed. I would just drop the#. You can just detect the HEX colors without it and add it before using them in the CSS.randomFgBgkinda option that would just use a random predefined combination that looks good. You could for example get it from https://github.com/Jam3/nice-color-palettes