On Black: "the most beautiful thing we can experience is the mysterious. it is the source of all true art and all science. he to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: his eyes are closed." by nathij [Medium]

View your Flickr photos on a gorgeous plain all-black or all-white background (sort of like a framed mat). A black background helps viewers find detail in black and white photos and other photos with dark areas and makes colors really pop. An uncluttered white background is the perfect clean slate to complement the right photo.