dark background. . purple and blue parts outlined in sparkling lines in 3d format move apart and narrow back.

abstract alpha animated animation art backdrop background black blinds block blocky box bright brightly business change channel clean concept corporate cover cube custom decorative design digital divide dynamic effect element erase geometric geometrical geometry glow graphic gray grid illustration lines luma mask matte mition modern mosaic motion movement moving open pattern pixel pixels polygon presentation promo rectangle reveal shape simple slides slideshow split square structure technology template texture tile transformation transition video wallpaper white wipe