Examine source code of Waterloo

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#79a394",
      "tab_background_text": "#f0eba6"
    }
  },
  "version": "2.0",
  "name": "Waterloo",
  "manifest_version": 2,
  "description": "Waterloo campaign of 1815, historical battle, Napoleon, military history, battle, battlefield, napoleonic wars.... updated version of version 1; Darker tones with light text."
}