Pixelmator 2.2 Is Available Today from the Mac App Store - Pixelmator Blog

Pixen - pixel art editor for macOS

How to open a .png file in Mac OS X - Quora

No-Cost Adobe PDF Editor for Mac Alternative

Steps to Upgrade Your Images with Free Photo Editing Apps for Mac

Developer tools and editing files

Video Editing Programs for Mac, PC, iPhone and iPad - Learn About Film

Palette Editor Sheet (Mac UI) by Alexander Käßner on Dribbble

Twilight Edge Software - PikoPixel for Mac/Linux/BSD

How to change the color of a PNG file on a Mac - Quora

Free Hex Editor for MacOS Big Sur « Adafruit Industries – Makers, hackers, artists, designers and engineers!