For the uninitiated in pull requests, can this be done via a TestFlight update? Btw love you app!
Light theme is here. Please feel free to pull request improvements: https://github.com/irislib/iris-messenger/blob/master/src/css/style.css
Discussion
Pull requests are a github thing. It's very helpful, as I don't have to write any code, but just accept the requested change. But improvement suggestions are useful as well, it helps me know what's most wanted.