"spraying orange paint"

I thought it was like chalk dust or something that goes away when it rains.

I also recall Stonehenge was mostly a pile of rocks until people decided to stand them up and cement them in place a century or two ago.

I also recall locals painting the names of their favorite sports teams on the rocks in days gone by. Back when you could just walk up there and touch them and climb on them like you can but aren't supposed to do at the Holocaust memorial in Berlin.