irregular polygon background - triangle low poly pattern - light pastel full spectrum multi color rainbow

acute adorable art baby background banner blank childish childlike color colored colour crystal cubism cute design diamond empty fraction fractional fragment full geometric geometrical geometry gradient grid illustration infantile irregular light low lowpoly mesh modern mosaic multi network origami pastel pattern poly polygon polygonal rainbow rectangle shape sharp spectrum structure tessellated tessellating tessellation trend trendy triangle triangular vector wallpaper