Examine source code of White Star Rainbow

{
  "theme": {
    "images": {
      "theme_frame": "starryRainbow.png"
    },
    "colors": {
      "frame": "#73320a",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "White Star Rainbow",
  "manifest_version": 2,
  "description": "hadn't made one in a while so figured i'd try something out"
}