abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines mica natural rock rock-face rockface rocky rough rugged shade shadows shape shapes silicate stone strata stratum sunlight sunny sunshine surfaces texture textured textures veins wallpaper shaped surface art artwork backdrop blue canvas card color colour cover design element fabric feminine fill geometric grain graphic grunge grungy illustration marble mottled old paint paper pastels pink purple scrapbooking soft tile wall