This library can read and write PNG files. It is written in pure Ruby for maximum portability. Let me rephrase: it does NOT require RMagick or any other memory leaking image library. - ChunkyPNG

• Image Manipulation - How to use ImageMagick and the RMagick gem to process and interpret images and photos.

• drawSvg - A Python 3 library for programmatically generating SVG images (vector drawings) and rendering them or displaying them in a Jupyter notebook.