For details on a figure in this gallery please access its entry page, where you will find information such as captions and pointers the original source, if available. In this page you may also find pointers to the author, as well licensing information.
Most (but not all) of the drawings in here are licensed under free Creative Commons licenses, allowing users to modify and distribute their source code. Please verify the license terms of each specific figure before using it in your documents. See Including the Figures for instructions on how to include a given picture in your documents.
As of now, this gallery is run by @pablo. If you would like to add your drawings to here please contact pablo-pie [at] riseup.net.