Material you/themed icon compatibility for the app.

[Gtoonm]

The app should be compatible with the new material you scheme android has. I've seen people mod the app to do so and I think it would be an easy enough addition to an already great app.

[RobbWatershed]

I guess we're kinda late on that aspect. I've added that to the backlog for v1.20.

I'd love to have people mod the app, so pull Requests are welcome in the meantime 😉