Examine source code of Orange Agate

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Orange Agate",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(50, 29, 30)",
      "toolbar_text": "rgb(255, 108, 0)",
      "frame": "rgb(50, 29, 30)",
      "tab_background_text": "rgb(223, 255, 238)",
      "toolbar_field": "rgb(255, 108, 0)",
      "toolbar_field_text": "rgb(223, 255, 238)",
      "tab_line": "rgb(177, 38, 0)",
      "popup": "rgb(68, 43, 44)",
      "popup_text": "rgb(255, 108, 0)",
      "ntp_background": "rgb(50, 29, 30)",
      "ntp_text": "rgb(255, 108, 0)",
      "tab_background_separator": "rgba(255, 108, 0, 0)",
      "tab_loading": "rgb(177, 38, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6a4dee9c-03e9-4bc0-b56c-8aef02632a76}"
    }
  }
}