Examine source code of Abendstimmung

{
  "theme": {
    "images": {
      "theme_frame": "Abendstimmung.jpg"
    },
    "colors": {
      "frame": "#fcce5b",
      "tab_background_text": "#d97f25"
    }
  },
  "version": "2.0",
  "name": "Abendstimmung",
  "manifest_version": 2,
  "description": "Aquarell Abendstimmung \n- Sonnenuntergang"
}