Examine source code of What is truth

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#8f8f8f",
      "tab_background_text": "#1f1721"
    }
  },
  "version": "2.0",
  "name": "What is truth",
  "manifest_version": 2,
  "description": "All good things..."
}