Colorful symmetrical pattern of triangles with thin dotted lines on black background

triangles patterns symmetry colors lines geometric design shapes triangle pattern symmetrical pattern colorful lines thin lines dots small dots black background abstract graphic art background symmetrical triangles color scheme symmetrical design geometry triangular shapes colorful pattern graphic design abstract art minimalist symmetrical lines triangular pattern fine lines multicolor abstract pattern bold colors minimalistic design triangular symmetry optical illusion vibrant intricate optical art precise colorful symmetry detailed modern illustration kaleidoscope bold lines contemporary