Examine source code of The Great Wave

{
  "theme": {
    "images": {
      "theme_frame": "Header.JPG"
    },
    "colors": {
      "frame": "#5accdb",
      "tab_background_text": "#0c2d4a"
    }
  },
  "version": "2.0",
  "name": "The Great Wave",
  "manifest_version": 2,
  "description": "The Great Wave Off Kanagawa"
}