Examine source code of Happy Chaos Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Happy Chaos Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(237, 254, 0)",
      "frame": "rgb(67, 194, 218)",
      "tab_background_text": "rgb(4, 3, 0)",
      "toolbar_field": "rgb(219, 219, 214)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(254, 155, 0)",
      "popup": "rgb(203, 201, 198)",
      "popup_text": "rgb(24, 156, 180)",
      "tab_loading": "rgb(254, 155, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{270ef2ba-8809-4085-bcf3-fab863d2c13e}"
    }
  }
}