Examine source code of Two Happy Horses

{
  "theme": {
    "images": {
      "theme_frame": "TwoHorsesHdr.jpg"
    },
    "colors": {
      "frame": "#080707",
      "tab_background_text": "#faf5f5"
    }
  },
  "version": "2.0",
  "name": "Two Happy Horses",
  "manifest_version": 2,
  "description": "Two happy horses in pasture\nChristian\n23rd Psalm\nThe Lord is my shepherd; I shall not want.  He makes me to lie down in green pastures;"
}