[mihaipocorschi]

It's not about the tool, but about the ability to synthesise a photo into an illustration.

Adobe Illustrator. Sketch (https://www.sketchapp.com/) Figma (https://www.figma.com/) Inkscape (https://inkscape.org/)

Also they are simply served as an image. https://css-tricks.com/using-svg/

[jordache]

No. No automated tool is capable of this auto conversion as you have alluded to.

Some artist painstakingly drew these vector illustrations.

[thelastinuit]

I know some of the applicants who participate in creating the assets: https://github.com/asgan/noether/blob/master/noether.png