Hi, I don’t suppose you have the vector versions of some of the included images do you? My colleague likes this one which is available for a splash-screen, but I would need to make other things from it:
A quick look revealed no SVG, AI or EPS files in the sources. So I am somewhat doubtful there is a Vector form.
Using InkScape (open source freeware similar to Adobe Illustrator) it would be fairly simple to vectorize that illustration. I’m sorry, I’m not able to write out all the steps here, but the are lots of YouTube tutorials explaining how to vectorize color graphics.
Actually, I would vectorize in black and white and recolor manually, because of the gradient in the background.
You will have to redo the gradient manually after vectorizing, using the gradient tool.
I hope that helps!