Examine source code of Foo Fighters themes

{
  "theme": {
    "images": {
      "theme_frame": "Persona4.png"
    },
    "colors": {
      "frame": "#3b3838",
      "tab_background_text": "#1c1a1a"
    }
  },
  "version": "2.0",
  "name": "Foo Fighters themes",
  "manifest_version": 2,
  "description": "Foo Fighters"
}