a pastel-colored abstract background featuring a mosaic of triangular s.background _triangle mosaic_light blue

wireframe wallpaper vector triangular triangle transparent texture template technology symbol shiny shapesbackground shape render precious poster polygonal polygon poly pattern pastelcolored paper origami mosaiclight mosaic modern low light jewel illustrationtriangle idea graphic geometry geometric futuristic featuring fashion facet element digital decorative decoration dark crystal creative cover connection concept card blue beautiful banner background abstract