background complex complicated ladder pulley rigging rope ropes ship spar texture boulder canada lichens natural nature plant rock Rocky Mountains crusty grow stone wall white backdrop grunge grungy rough rustic series tones variation variations base black blend canvas gray grayscale layer luminance mode pattern abstract clip art clipart gold graphic illustration metal metallic appearance brown color colored colors colour coloured colours grain grained panel surface textured textures uneven varnish varnished wallpaper wood wood-grain wooden atlas continent continents countries earth global globe map World