Yeah, I don't see how the colours are helping. It does make it look friendly and inviting, but switching back and forth between coloured balls and the usual sym

Yeah, I don't see how the colours are helping. It does make it look friendly and inviting, but switching back and forth between coloured balls and the usual symbolic mathematics (algebra notation) is jarring and confusing to me. Using colours instead of letters is a superficial trick and basically a step backwards. It's like those algebra memes where they use fruit instead of x, y, z etc. What's the point? But anyway I don't want to sound too dismissive because the mathematics literature definitely needs more of this kind of creativity!