abstract symmetrical mosaic background. black-gray veins radiate from the center on a light blue background.

background mosaic symmetrical blue azure vein texture black symmetry light puzzles fragment dynamic geometric cage mesh geometry copy space abstract pattern blot blotch graphic spot surface color stain design backdrop dye textured banner abstraction slick patch element shape drawn line stripe patchy variegated spotty wallpaper closeup detail vintage blackgray veins radiate center