Examine source code of Bright Lined Firefox

{
  "theme": {
    "images": {
      "theme_frame": "Brightlinedfirefoxheader.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Bright Lined Firefox",
  "manifest_version": 2,
  "description": "Clean Lines with a custom designed black and gray back drop.  Hot Pink and Neon Green..."
}