Russian Suprematist artist Kazimir Malevich furthered this flatness by placing flat colorful shapes on pure white backgrounds in his works, and De Stijl painter Piet Mondrian painted flat grids in red, blue, yellow, white, and black. (saatchiart.com)
Very helpful, thank you... would totally love to win this course as I can never get a pure white background! (blog.folksy.com)
Most of the Kobo books have a pure white background that the text overlays. (goodereader.com)