Examine source code of Bfdi space

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Bfdi space",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(102, 111, 207)",
      "toolbar_text": "rgb(186, 173, 247)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(117, 108, 161)",
      "toolbar_field": "rgb(182, 188, 255)",
      "toolbar_field_text": "rgb(123, 127, 204)",
      "tab_line": "rgb(193, 187, 255)",
      "popup": "rgb(39, 35, 57)",
      "popup_text": "rgb(161, 164, 227)",
      "tab_loading": "rgb(193, 187, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{48c2853e-16d3-491a-8ccd-8ca705e463aa}"
    }
  }
}