Examine source code of Chilly

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Chilly",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(254, 247, 225)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(255, 209, 166)",
      "tab_background_text": "rgb(119, 0, 0)",
      "toolbar_field": "rgb(255, 223, 204)",
      "toolbar_field_text": "rgb(207, 18, 75)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 248, 240)",
      "popup_text": "rgb(145, 54, 0)",
      "button_background_active": "rgb(244, 214, 194)",
      "button_background_hover": "rgb(255, 225, 204)",
      "icons_attention": "rgb(255, 164, 0)",
      "icons": "rgb(145, 54, 0)",
      "sidebar_border": "rgb(255, 190, 146)",
      "sidebar_highlight_text": "rgb(255, 103, 1)",
      "sidebar_highlight": "rgb(255, 226, 205)",
      "sidebar_text": "rgb(145, 54, 0)",
      "sidebar": "rgb(255, 248, 240)",
      "tab_loading": "rgb(254, 247, 225)",
      "tab_selected": "rgb(224, 155, 116)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{70f04427-ebb1-4c3c-83ec-2f4bb33c29f0}"
    }
  }
}