PUBLIC MARKS from cadu with tags graphics & "open source"

ImageMagick®, version 6.2.6, is a free software suite to create, edit, and compose bitmap images. It can read, convert and write images in a large variety of formats. Images can be cropped, colors can be changed, various effects can be applied, images can be rotated and combined, and text, lines, polygons, ellipses and Bézier curves can be added to images and stretched and rotated.

Welcome.Commons Design is a system for open source collaborative graphic design.

Sparklines are "intense, simple, wordlike graphics" so named by Edward Tufte