width = 256

height = 256

pixels = {}

bright = {0.33, 0.9, 0.12}

dark = {0.33, 0.5, 0.12}

current_color = bright

rev_color = 0

for y = 0, height-1 do

  if y % 32 == 0 then

    rev_color = 1

  end

  if y % 64 == 0 then

    rev_color = 0

  end

  for x = 0, width-1 do

    if x % 32 == 0 then

      if rev_color == 0 then

        current_color = dark

      end

      if rev_color == 1 then

        current_color = bright

      end

    end

    if x % 64 == 0 then

      if rev_color == 0 then

        current_color = bright

      end

      if rev_color == 1 then

        current_color = dark

      end

    end

    pixels[y*width+x+1] = current_color

  end

end