“While I spent time playing with Tux over the last few days, in addition to the time I have previously spent using this software in classrooms, I am never disappointed by what is has to offer. A child can make a simple picture, or use the special features more in depth to create detailed and real life technology based paintings.”
— Jamie Krinsky's Blog, November 2011
The fill tool
Large swaths of an image can be filled with various colors.