Examine source code of Ashcorp

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ken Ashcorp",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(104, 20, 155)",
      "frame": "rgb(38, 10, 64)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(186, 148, 209)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(104, 20, 155)",
      "popup": "rgb(104, 20, 155)",
      "popup_text": "rgb(186, 148, 209)",
      "tab_loading": "rgb(104, 20, 155)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d877c5bb-62bf-42a4-a000-70c2c7301f01}"
    }
  }
}