Examine source code of Christmas Candy Cane

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Christmas Candy Cane",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(26, 41, 22)",
      "toolbar_text": "rgb(219, 255, 219)",
      "frame": "rgb(132, 19, 17)",
      "tab_background_text": "rgb(255, 159, 153)",
      "toolbar_field": "rgb(26, 63, 31)",
      "toolbar_field_text": "rgb(219, 255, 219)",
      "tab_line": "rgb(186, 66, 66)",
      "popup": "rgb(38, 58, 37)",
      "popup_text": "rgb(224, 255, 224)",
      "popup_border": "rgb(66, 101, 69)",
      "tab_selected": "rgb(116, 23, 13)",
      "tab_text": "rgb(255, 222, 217)",
      "toolbar_bottom_separator": "rgb(11, 33, 14)",
      "tab_loading": "rgb(186, 66, 66)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af6148c7-b1f2-41fb-8ce3-12bf2c011cf7}"
    }
  }
}