Examine source code of amongst friends

{
  "theme": {
    "images": {
      "theme_frame": "amongstfriendskopiera.jpg"
    },
    "colors": {
      "frame": "#87f1f5",
      "tab_background_text": "#fcbf2f"
    }
  },
  "version": "2.0",
  "name": "amongst friends",
  "manifest_version": 2,
  "description": "mallards resting, white duck, birds, water, grass, summer, peace, harmony"
}