Draw shapes

Application that allows to create simple images starting from a sequence of instructions, saved into a file (script).
A short guide explains how to write it.
The application registers errors in instructions, to help in correcting them.
The image can be saved to a PNG image, to be used, for instance, in a web page.
Application can use "File manager" to choose the script and "Choose color" to insert a color code into the script.

Source code at https://github.com/massimocamaggi/drawshapes
Icon from http://www.iconarchive.com