Examine source code of Aquatic Ocean

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Aquatic Ocean",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(7, 50, 84)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(14, 41, 65)",
      "tab_background_text": "rgb(24, 185, 215)",
      "toolbar_field": "rgb(50, 90, 127)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(12, 198, 232)",
      "popup": "rgb(7, 50, 84)",
      "popup_text": "rgb(24, 156, 180)",
      "button_background_active": "rgb(188, 64, 188)",
      "icons": "rgb(144, 174, 252)",
      "tab_loading": "rgb(12, 198, 232)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{08e9145f-51e2-40f9-9ea0-16ed13380c5a}"
    }
  }
}