SVG (Scalable Vector Graphics) is an open standard used to describe two-dimensional vector graphics. It is great for diagrams and shapes, while PNGs are better for photographs. SVG files are a bit like instructions on how to make an image. This means that they can be resized without looking pixelated or blocky.

For more information, visit: https://www.w3.org/Graphics/SVG/

An excellent tool with which to create SVG images for use in Tux Paint is Inkscape, a high-quality Open Source interactive drawing program available for Windows, macOS, and Linux. There are also other applications that can produce SVGs, both free/open source, and commerical/proprietary.

Open Source

• Inkscape — http://www.inkscape.org/
• Karbon — https://calligra.org/karbon/

Proprietary

• CorelDRAW (Corel) — https://www.coreldraw.com/en/
• Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
• Boxy SVG — https://boxy-svg.com/
• Sketch (Sketch B.V.) — https://boxy-svg.com/