Scrawl.js
For the handling and manipulation of the HTML5 <canvas> element
...Users create sprite and gradient objects using scrawl factory functions,
set their styling and position, and render them onto the canvas element.
Creation, positioning and styling can all be handled by a single call to
the factory function.
Sprites include: basic rectangles (Block), advanced rectangles capable of
displaying images and sprite animations (Picture), circles (Wheel),
single-line text (Phrase), and complex designs composed of lines, arcs
and curves (Shape).
...