Examine source code of Electro Archon

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Electro Archon",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(198, 105, 244)",
      "tab_background_text": "rgb(198, 105, 244)",
      "toolbar_field": "rgba(41, 29, 75, 0.5)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(41, 29, 75)",
      "popup_text": "rgb(255, 255, 255)",
      "icons_attention": "rgb(198, 105, 244)",
      "ntp_background": "rgb(41, 29, 75)",
      "popup_border": "rgb(198, 105, 244)",
      "tab_selected": "rgba(41, 29, 75, 0.5)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7126af85-ee0a-4bab-8885-3f3b1b5071f3}"
    }
  }
}