Examine source code of QYS3 mafia

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "QYS3 mafia",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(36, 34, 37, 0)",
      "toolbar_text": "rgb(239, 9, 13)",
      "frame": "rgb(187, 167, 114)",
      "tab_background_text": "rgb(20, 18, 18)",
      "toolbar_field": "rgba(224, 10, 19, 0)",
      "toolbar_field_text": "rgb(232, 10, 13)",
      "tab_line": "rgb(198, 39, 39)",
      "popup": "rgb(131, 12, 12)",
      "popup_text": "rgb(10, 145, 241)",
      "tab_loading": "rgb(198, 39, 39)"
    }
  }
}