Rectangle is not accepting any new feature requests at this time, sorry. You can file a feature request for a feature that you plan to implement and submit a pull request for, so that the feature can be reviewed and you will know ahead of time if the feature will be rejected.
Please search through the existing issues, open and closed, before filing a new bug. Add the version of Rectangle, the version of the OS, and screenshots or videos as necessary.
Please match the existing coding style as much as possible.
By contributing to Rectangle you agree that your contributions will be licensed under its MIT license.
Logic from Rectangle is used in the Multitouch app. The Hookshot app is entirely built on top of Rectangle. If you contribute significant code or localizations that get merged into Rectangle, you get a free license of Multitouch or Hookshot. Contributors to Sparkle, MASShortcut, or Spectacle can also receive free Multitouch or Hookshot licenses. Either send me a message on https://gitter.im or email me from the email address specified on your GitHub profile after you're pull request has been merged.