Examine source code of PureFrame

{
  "manifest_version": 2,
  "name": "PureFrame",
  "version": "1.0",
  "description": "Cool blue geometric frame theme with a clean glow along the top edge.",
  "theme": {
    "images": {
      "theme_frame": "pureframe-header.png",
      "additional_backgrounds": [
        "pureframe-header.png"
      ]
    },
    "colors": {
      "frame": "#021629",
      "toolbar": "#03213A",
      "tab_background_text": "#E6F4FF",
      "tab_text": "#FFFFFF",
      "toolbar_text": "#E6F4FF",
      "bookmark_text": "#E6F4FF",
      "toolbar_field": "#043458",
      "toolbar_field_text": "#E6F4FF",
      "toolbar_bottom_separator": "#065A9A"
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8dbeb21a-4a12-4b2f-9738-ae6c1b353670}"
    }
  }
}