Examine source code of Lemon Mint

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Lemon Mint",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(140, 186, 210, 0.41)",
      "toolbar_text": "rgb(31, 146, 198)",
      "frame": "rgb(46, 95, 127)",
      "tab_background_text": "rgb(35, 125, 206)",
      "toolbar_field": "rgb(156, 236, 226)",
      "toolbar_field_text": "rgb(0, 114, 255)",
      "tab_line": "rgb(138, 231, 255)",
      "popup": "rgb(29, 72, 180)",
      "popup_text": "rgb(21, 226, 52)",
      "ntp_background": "rgb(255, 255, 255)",
      "tab_loading": "rgb(138, 231, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0b4a7305-ad34-46d4-bbfe-0ccb21db8d81}"
    }
  }
}