Examine source code of Chocolate Heaven

{
  "theme": {
    "images": {
      "theme_frame": "chocolate-swirl-heart.jpg"
    },
    "colors": {
      "frame": "#7f4317",
      "tab_background_text": "#efe4b3"
    }
  },
  "version": "2.0",
  "name": "Chocolate Heaven",
  "manifest_version": 2,
  "description": "Treat your browser for Easter! Delicious luxury gourmet chocolates on a swirling melted chocolate background [Easter, sweet, sweets, candy, candies, food, dessert, love, romance, romantic, Saint Valentines St Valentine's Day, hearts, chocolate brown]"
}