Examine source code of Human Evolution

{
  "theme": {
    "images": {
      "theme_frame": "human-evolution-persona-hea.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Human Evolution",
  "manifest_version": 2,
  "description": "Skulls of Homo sapiens, neanderthalensis, steinheimensis, rhodesiensis, Cro Magnon, Gorilla, Urang Utan, Chimpanzee, Pavian, Squirrel Monkey in a neat row to see the similarities"
}