Examine source code of Nier Automata 2B and 9S

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#e2f2d9",
      "tab_background_text": "#3e4a35"
    }
  },
  "version": "2.0",
  "name": "Nier Automata 2B and 9S",
  "manifest_version": 2,
  "description": "The characters from Nier automata, 2b and 9s."
}