Examine source code of Escape from wizards tower

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Escape",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(26, 15, 24)",
      "toolbar_text": "rgb(79, 195, 247)",
      "frame": "rgb(76, 58, 54)",
      "tab_background_text": "rgb(184, 223, 255)",
      "toolbar_field": "rgb(77, 61, 64)",
      "toolbar_field_text": "rgb(184, 223, 255)",
      "tab_line": "rgb(255, 90, 205)",
      "popup": "rgb(32, 27, 36)",
      "popup_text": "rgb(204, 204, 229)",
      "popup_border": "rgb(49, 49, 49)",
      "popup_highlight_text": "rgb(15, 10, 26)",
      "tab_background_separator": "rgb(26, 26, 26)",
      "toolbar_field_separator": "rgb(49, 49, 49)",
      "tab_loading": "rgb(255, 90, 205)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{233f95e5-4a24-4f66-99d3-a477b0814780}"
    }
  }
}