Change Color Map

[massilia68]

Hello, I change the color of the water and landscap on my live map, how can I add this code or should I add?

[
 {
   "featureType": "landscape.natural",
   "stylers": [
  { "color": "#ffffff" }
   ]
 },{
   "featureType": "water",
   "stylers": [
  { "color": "#000000" }
   ]
 }
]

it is a json code recovered here http://www.dwzone-it.com/StyledMapWizard/StyledMapWizard.asp

Thank you very much