[ad404b8a372f2b9]

The description says change is described as yellow nodes though, also all three addresses are different

[37ef_ced3]

A Bitcoin owner typically controls many addresses. It is typical to create a new address to receive change. But (apparently) sometimes an address is reused (to receive change), and that's the yellow

[jjnoakes]

The change address is usually different from the other two.