Examine source code of Pokemon Generation 1

{
  "theme": {
    "images": {
      "theme_frame": "gen1.jpg"
    },
    "colors": {
      "frame": "#998af2",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Pokemon Generation 1",
  "manifest_version": 2,
  "description": "The games from the first generation of Pokemon. The Green Box art was designed by level42 on the Bulbagarden forums."
}