Not sure this was intended but I have used the text field property to write the class name in the css, this means for this example I have written the same class as I duplicated the html component
example included, again preview in safari does not show image, does in Elements so revert background colour so I could check shape
placed 5 custom component triangles, by just duplicating the component in a page, needs some layout adjusting for the text etc when changing to mobile and when wide, but changes in Elements, images will work later this week when next beta is released, I have created circles/ovals and arrows
wow I really like Elements
updates work great from my changes, I found it difficult to create the top banner in my previous upload, this is only Elements, it was easier before update, gave up
but my components work, I think, even in the mobile menu