Examine source code of The Amazing Spider-Man

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "The Amazing Spider-Man",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-006-51ab495c5f5dde6a3cddb22484acd00d.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 44, 105)",
      "toolbar_text": "rgb(252, 42, 86)",
      "frame": "rgb(112, 36, 52)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(105, 63, 24)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(112, 36, 52)",
      "popup": "rgb(105, 63, 24)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(48, 31, 34)",
      "tab_loading": "rgb(112, 36, 52)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{425f2a27-3f3d-4452-b384-336b3e1ac0d2}"
    }
  }
}