grille and lower grille color

[wvayn]

Back to my original question. I had the lower grille panel polished which removed the painted surface. I am looking to repaint that surface, which includes the headlight trims. Having purchased a new grille which is black, should the grille be painted the gray color or left alone. And the headlight trim (lower area) pieces that are painted, should they be painted  black to match the black grille or the gray?