Examine source code of Palmier

{
  "theme": {
    "images": {
      "theme_frame": "palmierentete.png"
    },
    "colors": {
      "frame": "#ff6a00",
      "tab_background_text": "#ff6a00"
    }
  },
  "version": "2.0",
  "name": "Palmier",
  "manifest_version": 2,
  "description": "Palmier"
}