* Try to provide "simple" (if possible) code to reproduce the bug. If you can't simplify your code, a complete code is better than a simple, but incomplete one.
* If relevant, you can post a screenshot describing the problem.
## Improvement idea
If you have an idea you think would make this library better, we're all ears!
* Describe your use-case: what do you want to achieve with this improvement?
## Pull requests
If you feel like digging in the code, thank you again! We're very grateful for your work.
* Format your code with rustfmt.
* Make sure all tests are passing - it's very easy to forget a backend! If you start a Pull Request, travis will check all backends for you.
* Only use stable rust features. This library should compile on rust stable.