Not attractive, but I'd never noticed anything quite like this. Might
be there in others, but just caught my eye as odd in this one. The
veins are dark, then abruptly become white, while between the veins is
white, then abruptly becomes pigmented at the same place the veins
change color. Sharp line of change.

Maybe many falls with a lot of haft mess are a little like this?

Linda Mann east TN USA zone 7