Examine source code of A Summer Firefox

{
  "theme": {
    "images": {
      "theme_frame": "PoppyFirefoxH.jpg"
    },
    "colors": {
      "frame": "#dbf0f7",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "A Summer Firefox",
  "manifest_version": 2,
  "description": "Firefox, fox, poppy, poppies, sky, birds, grass, spring, whimsical, clouds, sky,"
}