Examine source code of Road Autumn

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Road Autumn",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(8, 148, 141, 0.53)",
      "toolbar_text": "rgb(241, 238, 238)",
      "frame": "rgb(15, 100, 97)",
      "tab_background_text": "rgb(241, 235, 236)",
      "toolbar_field": "rgba(10, 172, 164, 0.7)",
      "toolbar_field_text": "rgb(252, 252, 252)",
      "tab_line": "rgb(44, 3, 5)",
      "popup": "rgba(47, 196, 184, 0.58)",
      "popup_text": "rgb(44, 3, 5)",
      "tab_loading": "rgb(44, 3, 5)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bc9535ac-badb-4980-acda-d932a6487241}"
    }
  }
}