Symmetrical red square pattern with light and dark shades

pattern red squares grid shade symmetrical lighter darker arrangement color row column grid pattern red squares symmetrical pattern color arrangement square grid shade of red lighter squares darker squares grid symmetry red color grid arrangement symmetrical grid square pattern red pattern color pattern shade pattern symmetrical arrangement square color red grid shade symmetry square shade grid color pattern arrangement red square pattern shade grid symmetrical color darker shade grid square red square grid darker color lighter shade pattern symmetry red shade color symmetry square arrangement grid shade background abstract