Examine source code of beausejour

{
  "theme": {
    "images": {
      "theme_frame": "Vue_Beau_Sejour_head.jpg"
    },
    "colors": {
      "frame": "#1d20de",
      "tab_background_text": "#d2cef2"
    }
  },
  "version": "2.0",
  "name": "beausejour",
  "manifest_version": 2
}