There are many drawing applications for GNU / Linux, many of them are well known. Also, if you are looking for a substitute similar to MS Paint, you will also find some programs that can satisfy you. But with MyPaint You will also have a drawing platform that will improve productivity so that you can focus on what really interests you, without distractions.
MyPaint is free, and open source. You can get more information about her in her official websitel, or download it from its download section. Besides being free and having a large number of features, you have another great advantage with this app. And it is in the case that you use graphic tablets for your designs. For example, like the famous Wacom. Something very practical if you are an artist or you just like to draw as a hobby.
MyPaint has been developed primarily by martin renold, and he himself emphasizes that it is a «quick and easy painting app for artists«. Its tools can be used easily, without distractions and with everything you need to start making your sketches or art designs. You will find from tools to paint like the different brush modes, to others to mix layers, and even some to improve the image, etc.
You can find it in beta or stable version of MyPaint, depending on whether you want to try the latest or enjoy stability. Since then, some progress has been made in the development, but there is much more to come in the future. In addition, the creator has thought about the different GNU / Linux distros available, and it is available in universal AppImage packages to make it easy to install on any distro.