Flying Meat Acorn

Flying Meat Acorn 6.5.3 | Mac OS X | 13 MB. 

Acorn is a new image editor built with one goal in mind - simplicity. Fast, easy, and fluid, Acorn provides the options you'll need without any overhead. Acorn feels right, and won't drain your bank account. 

Compatibility: OS X 10.11.4 or later 64-bit
Homepage: http://flyingmeat.com/acorn/