Examine source code of bonhommes2

{
  "theme": {
    "images": {
      "theme_frame": "bonhommes-top.jpg"
    },
    "colors": {
      "frame": "#021933",
      "tab_background_text": "#d4fffc"
    }
  },
  "version": "2.0",
  "name": "bonhommes2",
  "manifest_version": 2,
  "description": "bonhommes allumettes"
}