Examine source code of Hunger Games Forest

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#b5f5b3",
      "tab_background_text": "#053fff"
    }
  },
  "version": "2.0",
  "name": "Hunger Games Forest",
  "manifest_version": 2,
  "description": "An RPG-esque forest with my personal drawings of Katniss and her Mocking Jay Pin."
}