This is an easy to use but powerful image
editor. It supports "layers". Imagine GIMP/Photoshop "light" - most of the features non-professionals need to create
This incredible software is originally the amazing work of Mark Pazolli and many others (see the credits in the user guide).
I've cleaned it up to work with the latest OS versions, made some UI updates, some performance and usability improvements, and released it to the world via the App Store !
Join the open-source effort at https://github.com/robaho/seashore
You can use the Help -> Donate to buy the developer a beer if you're so inclined - but Seashore will always be free. Any donations will help to modernize the equipment to keep it working on the latest OSX releases.
Please post your honest rating & review to keep the developer motivated and the project alive.