Thought I'd pass this on incase it's useful to anyone.
For Android (specifically Samsung), if you're phone has dark mode, the native internet app will work for Grand Old Team.
If like me you use the Google Chrome app, follow the instructions on this website
https://www.xda-developers.com/google-chrome-android-dark-mode/
it's a bit annoying having to enable and disable it if you want to switch back and forth, but I just thought I'd link anyway.