OpenStreetMap + App = OsmAnd!

I have noticed that OSMAnd has all kinds of icons and symbols to represent different attributes of objects. For example, if the Sport tag is equal to a certain value, it might have a certain icon, and if it's a different value, it might have a different icon.

I want to update some of these icons to better represent the things that are written in the OSM Wiki.

I'm not an app developer so I'm not sure exactly how to contribute but I'm guessing that if it's just checking icons and stuff like that I should be able to contribute myself.

I tried looking over the repository and I couldn't really figure out where to start from so if anyone here can just point me in the right direction I will go over and start reading the code but currently I'm not sure where to start from and I would appreciate it if anyone can point me to a specific file or section that I should look at.