[[http://mtpaint.sourceforge.net/ mtPaint]] is a painting program which Mark Tyler developed from scratch so he could easily create pixel art and manipulate digital photos.
It uses the GTK+ toolkit (version 1 or 2) and runs on PC's via the GNU/Linux or Windows operating systems. Due to its efficient design it can run on older PC hardware (e.g. a 200MHz CPU and 16MB of free RAM).
mtPaint is free software, which means you are able to freely use, modify and distribute it according to the GNU General Public License.
Currently mtPaint is maintained by Dmitry Groshev.
It has many features∞
Bug reports, feature suggestions, and any other kind of feedback can be posted to the user mailing list: