Examine source code of tenderness bird

{
  "theme": {
    "images": {
      "theme_frame": "sweet.png"
    },
    "colors": {
      "frame": "#4f572b",
      "tab_background_text": "#1a2901"
    }
  },
  "version": "2.0",
  "name": "tenderness bird",
  "manifest_version": 2,
  "description": "bird oiseau tenderness"
}