Examine source code of Neon tiger

{
  "theme": {
    "images": {
      "theme_frame": "Untitled_image.png"
    },
    "colors": {
      "frame": "#16ff0a",
      "tab_background_text": "#2fff00"
    }
  },
  "version": "2.0",
  "name": "Neon tiger",
  "manifest_version": 2
}