Examine source code of Magic dust

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Magic dust",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(117, 107, 210, 0.5)",
      "toolbar_text": "rgb(246, 224, 255)",
      "frame": "rgb(107, 78, 210)",
      "tab_background_text": "rgb(236, 232, 255)",
      "toolbar_field": "rgb(255, 245, 218)",
      "toolbar_field_text": "rgb(40, 0, 121)",
      "tab_line": "rgb(255, 236, 0)",
      "popup": "rgb(40, 0, 121)",
      "popup_text": "rgb(255, 245, 218)",
      "ntp_background": "rgb(54, 13, 85)",
      "ntp_text": "rgb(255, 236, 0)",
      "popup_border": "rgb(255, 236, 0)",
      "toolbar_field_border": "rgb(56, 0, 255)",
      "toolbar_field_highlight": "rgb(40, 0, 121)",
      "tab_loading": "rgb(255, 236, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{723900e4-4276-4745-be16-024dc36b6ffb}"
    }
  }
}