Examine source code of Opposites Alike

{
  "theme": {
    "images": {
      "theme_frame": "Personas003-1-1-1.jpg"
    },
    "colors": {
      "frame": "#bfbfbf",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Opposites Alike",
  "manifest_version": 2,
  "description": "Black and white have always looked good together."
}