Examine source code of Firefox black campgaw

{
  "theme": {
    "images": {
      "theme_frame": "images_snow1.png"
    },
    "colors": {
      "frame": "#eeeeee",
      "tab_background_text": "#eeeeee"
    }
  },
  "version": "2.0",
  "name": "Firefox black campgaw",
  "manifest_version": 2,
  "description": "firefox logo black background"
}