Examine source code of Flower bed

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Flower bed",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 131, 131, 0.5)",
      "toolbar_text": "rgb(44, 135, 18)",
      "frame": "rgb(255, 233, 231)",
      "tab_background_text": "rgb(143, 45, 0)",
      "toolbar_field": "rgba(220, 255, 210, 0.75)",
      "toolbar_field_text": "rgb(83, 60, 188)",
      "tab_line": "rgb(255, 226, 0)",
      "popup": "rgb(255, 212, 230)",
      "popup_text": "rgb(44, 135, 18)",
      "tab_loading": "rgb(255, 226, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2bc09124-cadb-4b57-85bb-36dd6a3d80cd}"
    }
  }
}