Hi! I'd love to contribute to this project. Lately I've been using zxing-cpp for a hobby project that involved scanning QR codes in a web browser and seeing a Rusty version pop up on the r/rust front page put a smile on my face. :)

I'd like to help "rustify" the code, to improve readability and get to know the codebase a bit better without making major changes. I see in your Reddit post that you have in-progress work though, so before I start opening PRs, I wanted to ask:

What are some good files in the repo to get started with; files that you aren't working on currently, which could use some prettification?