What is “pngcrush” Package?

Optimizer for PNG files
For more details: https://pmt.sourceforge.io/pngcrush

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install pngcrush.

  brew install pngcrush

Now, use pngcrush!