Examine source code of Fresh Oranges

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fresh Oranges",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-003-31b6bea3c78e3a19fd889b0389652a94.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 241, 190)",
      "toolbar_text": "rgb(255, 149, 11)",
      "frame": "rgb(153, 209, 127)",
      "tab_background_text": "rgb(249, 255, 164)",
      "toolbar_field": "rgb(251, 254, 210)",
      "toolbar_field_text": "rgb(102, 192, 41)",
      "tab_line": "rgb(255, 149, 11)",
      "popup": "rgb(255, 225, 173)",
      "popup_text": "rgb(255, 149, 11)",
      "tab_loading": "rgb(255, 149, 11)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{49cee4d5-09e9-4465-8e0b-dc39cc66177e}"
    }
  }
}