Wrong shape in Figure 10-2

[RaymondBalise]

The left graphic in Figure 10-2 shows element 21 as a green 💥rounded square💥 . The rounded squares are supposed to be a tan color (to represent fold 2). Element 21 should be a green 💥circle💥 (to represent fold 1).

The issue is is easy to overlook on the web rendering but in the grayscale printing in the book the mixed symbols are confusing.

[juliasilge]

Ah, yep, notice that 21 is not a circle on the right:

@topepo when you get a chance, can you remake this image?

[juliasilge]

I submitted this to the errata list.