[Ferret7446]

Paper, particularly bleached paper, is not "traditional normal" either.

I'm no paleontologist, but originally humans would use substances like ash and fruit to draw/write on rock/leaves/bark, so white/red/colors on grey/green/brown.

[crazygringo]

I'm something's been normal for a few centuries, I'm comfortable calling it traditional.

Otherwise I'd use a word like "prehistorical".