abstract appearance backdrop background baked biscuits bread-substitute brown colors colours crisp crispy crunchy diet dietary dietary-biscuits dietary-substitute dieting dry edge edges edible food hard multi-grain multi-grained on-edge sandwich-substitute surface surfaces texture textured textures weight-reduction blended color colored colorful colour coloured colourful contoured contours contrast contrasting decorative design details edged geographic interconnected interlinked interwoven light marble marbling multicolored multicoloured patterns perspectives shape shaped shapes style thick thin vibrant wallpaper fiery flow flowing hot lava green wing-like angles architectural cover covered covering dark edging elements exterior external height high lines protection protective roof roof-area roofing rooftop rows shade shadows sunlight sunshine tiles tiling wavy antiquarian archives binding boards books browning close-up cloth corners covers culture damage damaged deckled edge discoloration discolouration dog-eared dusty editions fabric foxing fragile frayed hardcover leaves libraries library old pages print restoration spine tattered text value wear