Drawing

I found this tidbit about Photoshop, has nothing to do with photography but it's fun!  it's located in Preferences - technology previews - paint symmetry, create a new document, pick a brush and when you see the little butterfly select vertical and then start drawing.  Perhaps this belongs in other software, move if needed.  I can attach the video where I found this little fun thing if anyone is interested or message me.  It is for PS 2018
i.ibb.co/jL2JwBj/Untitled-2.jpg