Examine source code of joad_persephone

{
  "theme": {
    "images": {
      "theme_frame": "persephone2.jpg"
    },
    "colors": {
      "frame": "#eefd06",
      "tab_background_text": "#000303"
    }
  },
  "version": "2.0",
  "name": "joad_persephone",
  "manifest_version": 2,
  "description": "created from a picture of a wall painting by Joad"
}