irregular polygonal square background - triangle low poly pattern - trendy cool pastel colored - baby pink, purple

acute art baby background banner blank cold colored colour cool crystal cubism design diamond fraction fractional fragment geometric geometrical geometry gradient grid ice icy illustration irregular light low lowpoly mesh modern mosaic multi multicolored network origami pale pastel pattern pink poly polygon polygonal purple shape sharp square structure tessellated tessellating tessellation trendy triangle triangular varicolored variegated vector wallpaper