Examine source code of Water Flow Over Rocks

{
  "theme": {
    "images": {
      "theme_frame": "Rockwaterfallhead.jpg"
    },
    "colors": {
      "frame": "#b5b1b1",
      "tab_background_text": "#faf5f5"
    }
  },
  "version": "2.0",
  "name": "Water Flow Over Rocks",
  "manifest_version": 2,
  "description": "Water flowing over rocks with white text.\nAll the best.\nDay."
}