Examine source code of Light Hexagon

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Light Hexagon",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(58, 89, 105, 0.17)",
      "toolbar_text": "rgb(36, 191, 199)",
      "frame": "rgb(59, 136, 163)",
      "tab_background_text": "rgb(0, 242, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(45, 124, 135)",
      "tab_line": "rgb(38, 207, 202)",
      "popup": "rgb(58, 98, 103)",
      "popup_text": "rgb(36, 191, 199)",
      "tab_loading": "rgb(38, 207, 202)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{096c9f34-e9d6-49f8-ab7b-c8fe3a6939b5}"
    }
  }
}