Examine source code of Barking Dandelion

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dandelion",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(211, 210, 209, 0.63)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(157, 183, 190)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(255, 255, 155, 0.89)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgba(255, 255, 155, 0.89)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1ea6f32f-9e5b-43d6-8fa9-3d4377d7e27a}"
    }
  }
}