Examine source code of lets all love lain

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "lets-all-love-lain",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(43, 17, 34, 0.78)",
      "toolbar_text": "rgb(209, 118, 138)",
      "frame": "rgb(43, 17, 34)",
      "tab_background_text": "rgb(236, 171, 184)",
      "toolbar_field": "rgb(14, 0, 10)",
      "toolbar_field_text": "rgb(209, 118, 138)",
      "tab_line": "rgb(209, 118, 138)",
      "popup": "rgb(209, 118, 138)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(28, 10, 21)",
      "ntp_text": "rgb(209, 118, 138)",
      "tab_loading": "rgb(209, 118, 138)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6f642de-c4d5-4f1a-b81d-0cfad843836b}"
    }
  }
}