Deletion of Lightgraff (lightgraff art)

Comment: Highbeam and Questia searches turn up nothing. Google Books provides https://books.google.co.uk/books?id=WLPSBAAAQBAJ&lpg=PA24&dq=Lightgraff&pg=PA24#v=onepage&q=Lightgraff&f=false this brief piece in a French book on street art. As per the nominator, this appears to be a neologism associated with one eponymous group in Lyon, with an after the fact extension to past artists. Fails , 
Stance: delete
Cited policy: Wikipedia:Notability (:WP:ORGDEPTH||:WP:GNG)