The difference between the evidence from the design and the evidence from the complexity

Hello Rabbi Michi,
In your book “God Plays Dice,” Chapter 3, you insist that evidence from design has a certain addition over evidence from complexity, in that design is a visible “divine fingerprint,” unlike complexity, which only proves that someone who put it together existed.
Can you explain a little more what the difference is?
Just as planning is a “fingerprint” of the planner, so it can be said that complexity is a “fingerprint of the component.”
Or alternatively:
Just as complexity only shows that there is a component, so design only shows that there was someone who designed it all.