ImageOptim-CLI: 1.6.18 - for Image[Optim|Alpha]

This is a command line tool that automates ImageOptim, ImageAlpha
and JPEGmini to make batch optimisation of images part of your
automated build process.

ImageOptim seamlessly integrates best optimisation tools: PNGOUT,
Zopfli, Pngcrush, AdvPNG, extended OptiPNG, JpegOptim, jpegrescan,
jpegtran, and Gifsicle.

ImageAlpha greatly reduces file sizes of 24-bit PNG files (including
alpha transparency) by applying lossy compression and conversion to a
more efficient PNG8+alpha format. The CLI uses pngquant only.

JPEGmini can reduce the file size of your photos by up to 5x, while
keeping their original quality and JPEG format.