Inkscape - Open Source vector graphics editor for creating different illustrations (up to use as a General-purpose CAD, which also contributes to the ease of exchanging drawings).
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Owner and main writer of MintGuide.org is not a native English speaker.
Supports native SVG developed by the W3C. SVG allows you to create images of various types, including animations. Because SVG is based on XML markup language, it is possible to write extensions than the Inkscape developers are actively using. Distributed under the GNU General Public License.
The program is great. Very lightweight and has impressive functionality. It is possible to create any complex vector graphics. Native supports all main SVG elements: contours, text, markers, clones, alpha channel, transformations and gradients, textures and grouping. Inkscape also supports metadata Creative Commons, editing nodes, layers, complex operations with contours, bitmap tracing, text editing directly on the image, made-up figure in the text. Internet published hundreds of video lessons on this software.
Installation latest version into Linux Mint:
sudo apt install inkscape sozi ink-generator