abstract backdrop background blend canvas color colors colour colours hue hues paint painting shade shades stripes tone tones various copy copy-space drop fantasy gradient graphic illustration mountains ocean sea seascape soft splash water waves wavy brush colorful pastel pastels rough stroke strokes texture textures aqua art azure colourful cool fill green magenta marble marbling pink purple violet beige branches brown desktop edges grunge neutral ochre parchment pattern scrapbooking tree wallpaper yellow angular grungy orange red retro streaks experimental paints series variation variations watercolor watercolour