This potholder was made using Peaches & Creme worsted weight cotton yarn in an ombre colorway known as "shaded brown." This variegated yarn features contrasting colors of brown, camel, rust and white. The cone of yarn is pictured on the upper right.
This potholder is crocheted using afghan stitch, also known as Tunisian simple stitch. I found this an interesting project to crochet, although I do not care much for the end result.
The lower photo is a close-up view of the stitches.
As you can see, there is a great deal of contrast between the colors in this yarn. There is an obnoxious amount of color flashing, which is visible in these project photos. See how the rust and dark brown colors form obvious diagonals that combine to create a sort of argyle? I really do not like this effect.
My husband, on the other hand, loved it - and it is unusual for him to even notice the pattern on a potholder, let alone comment on it. That just goes to show you, some people like the color flashing you get with variegated yarns, and some don't. If you don't like this effect, it's probably best to avoid using this particular yarn with the potholder pattern I've linked.
On the other hand, if you like the idea of being able to create an interesting patterned look without having to do any color changes whatsoever, you'd probably enjoy crocheting this project.