Box is a language specifically designed to make vector graphics easy plus a integrated development environment which facilitates the use of the language by interactively showing the graphical output. Box combines the convenience of drawing figures with the mouse with the convenience of describing them with a language tailored for vector graphics.
OriSVG attends to give some help to origami diagrams designers by providing markers, arrows, strokes and preformated diagrams in SVG language, and some Inkscape's plugins and scripts.
AutoManga will provide authoring tools (integrated with the Skencil vector graphics program) and PyGame (SDL) based display tools for parametric character animation, with tools and helpers optimized for "manga-style" characters. Uses 2D SVG "cels".