It's easier to follow this tutorial if you first take my tutorial on the Selection tools: https://scratch.mit.edu/projects/316424010/ This tutorial is a text narrated slideshow / animation: Keyboard: Press space or right arrow to continue. Press left arrow to go back. Mouse / touch screen: Click the [>] button to continue. Click the [||] button to pause. Click [<<] to go back 10 frames. Click [>>] to skip ahead 10 frames. When the narrator says (for example) "click the anchor point", DON'T click the anchor point. He is telling you what to do later, when you are editing your own vector graphics.
I created all the vector graphics in this tutorial, but obviously much of it is from the Scratch Vector Editor. The narrator is a reproduction of my Nintendo Mii. For more information about Scratch vector graphics, please visit: https://en.scratch-wiki.info/wiki/Vector_Graphics