Examine source code of Flowery sping

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Flowery sping",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 224, 229, 0.8)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(233, 174, 203)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 170, 212)",
      "toolbar_field_text": "rgb(30, 62, 0)",
      "tab_line": "rgb(108, 211, 9)",
      "popup": "rgb(245, 218, 113)",
      "popup_text": "rgb(30, 62, 0)",
      "ntp_background": "rgba(255, 224, 229, 0.8)",
      "ntp_text": "rgb(30, 62, 0)",
      "tab_loading": "rgb(108, 211, 9)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ffef76bb-56a7-42c4-aede-aa56a577b357}"
    }
  }
}