Examine source code of Iron Man Exclusive

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Iron Man Exclusive",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(3, 52, 81)",
      "toolbar_text": "rgb(255, 2, 54)",
      "frame": "rgb(0, 4, 6)",
      "tab_background_text": "rgb(7, 0, 0)",
      "toolbar_field": "rgb(254, 250, 250)",
      "toolbar_field_text": "rgb(1, 2, 13)",
      "tab_line": "rgb(243, 1, 54)",
      "popup": "rgb(240, 232, 234)",
      "popup_text": "rgb(26, 35, 229)",
      "tab_loading": "rgb(243, 1, 54)"
    }
  }
}