seamless pattern. geometrical hand drawn background with rectangles, squares, dots. print for decorative wallpaper, packagi

seamless vector pattern geometrical hand drawn background rectangles squares dots print for decorative wallpaper packagi packaging wrapping fabric line drawing graphic design green retro vintage colorful abstract backdrop connect contour decoration diamond geometric geometry illustration linear lined molecules mosaic ornament outline polygon polygonal repeat science shape square striped structure technology template textile tile trendy triangle triangular triangulation