abstract arts backdrop background color colors colour colours crafts curves distortion experimental paint painting pastels scrapbook spectrum texture wave waves aqua art art paint colourful cool fill line magenta marble marbling pastel pink purple blue canvas grunge grungy rough rustic tattered worn hues paints shades spatter spatters splatter splatters tones variations pattern plaid strip stripes paper papier series strokes textures variation bokeh effect lights bridge city connection crossing famous graphic gray green grey impressionism link scenery sky span steel transit