Feel free to fork and send a pull request if you want to contribute to this project.
Notice that Calendula is licensed under the terms of the GPL v3 license, so by submitting content to the Calendula repository, you release your work to the public domain.
Since this repository contains the code for an Android app published in Google Play, which could include part of your contributions in future updates, we’re required to have agreements with everyone who takes part. This is the easiest way for you to give us permission to use your contributions (in effect, you’re giving us a licence, but you still own the copyright, so you retain the right to modify your code and use it in other projects).
To get started, please sign our Contributor License Agreement.