The lighter dung in the far left pile is what to look for. It is more sun bleached than the other two piles.
A good one!
And some more.
But would you see it on the trail? This is where observation & experience count, it is not something you start practicing when you urgently need to find some tinder.
I found this punk wood beside the trail. Not all punk wood, but enough around the wood to use for making fire, & better than Kangaroo dung.
It actually took longer to make fire than this video shows, but I had to edit. Regardless it did work.