Examine source code of nanobomb

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "raze kj",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(24, 24, 24, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0.38)",
      "popup": "rgba(24, 24, 24, 0.67)",
      "popup_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(255, 255, 255, 0.38)",
      "popup_highlight": "rgba(255, 255, 255, 0.38)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(24, 24, 24)",
      "toolbar_field_border": "rgba(255, 255, 255, 0.38)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgba(255, 255, 255, 0.38)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b276e3b-639f-4613-bef8-d0f68c3bb3b8}"
    }
  }
}