Examine source code of couple_at_sunset

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#0a0a0a",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "couple_at_sunset",
  "manifest_version": 2,
  "description": "I took this photo by chance while practically running back to the hotel. So I don't know these people and considering that they are taking pictures of each other it is still a nice picture."
}