Download of Seashore
Seashore is an open source image editor based on GIMP. Unlike GIMP it does not require X11 to be executed.
In addition to various layers, alpha channel editing, it also supports various file formats.
You've chosen Seashore, you can download it on the developer page itself. Free Mac Software provides several Links to external services where you can download the Software you've choosen, Free Mac Software itself does not provide any downloads. Please click the given link on the left side to get redirected to the page where you can download the software.