Examine source code of flowers1

{
  "theme": {
    "images": {
      "theme_frame": "ff1.jpg"
    },
    "colors": {
      "frame": "#f20e0e",
      "tab_background_text": "#f2db09"
    }
  },
  "version": "2.0",
  "name": "flowers1",
  "manifest_version": 2,
  "description": "just a pinch of flowers: Hepatica nobilis, Linum julicum, Rosa canina, Convolvulis cantabrica,... an an alien Carpobrotus"
}