Examine source code of Aurora Theme Test

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Aurora Theme Test",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(36, 71, 89)",
      "toolbar_text": "rgb(246, 0, 253)",
      "frame": "rgb(86, 172, 4)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(8, 8, 67, 0.19)",
      "toolbar_field_text": "rgb(2, 159, 255)",
      "tab_line": "rgb(0, 255, 34)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(0, 255, 34)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{212610a8-5f3d-4829-9298-8859e0dd2575}"
    }
  }
}