striped spiral abstract tunnel dark background. spiral funnel. gray twisted ray black hole. exciting gently spiraling

abstract backdrop background black circle curl curved dark decor depth design digital dynamic edge exciting fractal frame funnel generated gently geometric geometry graphic gray grey grid helix hole illustration infinity line mesh monochrome motion pattern perspective ray repetition rotation round rounded shape spiral spiraling step strip striped swirl trendy tube tunnel twist twisted vector volume vortex wallpaper warp whirlpool white worm