Examine source code of Party Skulls

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Party Skulls",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(127, 32, 73)",
      "toolbar_text": "rgb(248, 215, 185)",
      "frame": "rgb(127, 32, 73)",
      "tab_background_text": "rgb(248, 215, 185)",
      "toolbar_field": "rgb(248, 215, 185)",
      "toolbar_field_text": "rgb(127, 32, 73)",
      "tab_line": "rgb(220, 193, 205)",
      "popup": "rgb(11, 15, 27)",
      "popup_text": "rgb(248, 215, 185)",
      "button_background_active": "rgb(11, 15, 27)",
      "button_background_hover": "rgb(127, 32, 73)",
      "icons": "rgb(248, 215, 185)",
      "ntp_background": "rgb(11, 15, 27)",
      "ntp_text": "rgb(248, 215, 185)",
      "sidebar_highlight": "rgb(127, 32, 73)",
      "sidebar_text": "rgb(248, 215, 185)",
      "sidebar": "rgb(79, 33, 59)",
      "tab_background_separator": "rgb(127, 32, 73)",
      "tab_text": "rgb(248, 215, 185)",
      "toolbar_vertical_separator": "rgb(220, 193, 205)",
      "tab_loading": "rgb(220, 193, 205)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{92458a9e-04ba-46a4-90b2-850afe4644c2}"
    }
  }
}