This site uses Creative Commons images from the following sites:
svgsilh.com - CC0 1.0 Universal (CC0 1.0)
svgrepo.com - Attribution 4.0 International (CC BY 4.0)
Many of these images have been modified before use.
We use some icons released by Freepik from www.flaticon.com
We also use images released under the pixabay licence.