Examine source code of Apartment building

{
  "name": "Apartment building",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Apartment building.jpg"
    },
    "colors": {
      "frame": "rgba(235, 215, 144, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(92, 81, 29, 1)",
      "toolbar_field": "rgba(160, 163, 143, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ed0483db-b778-4748-b188-9fc4d4ab1e3d}"
    }
  }
}