Examine source code of US Baseball Flag2

{
  "theme": {
    "images": {
      "theme_frame": "USBaseballFlag2.png"
    },
    "colors": {
      "frame": "#080707",
      "tab_background_text": "#080101"
    }
  },
  "version": "2.0",
  "name": "US Baseball Flag2",
  "manifest_version": 2,
  "description": "Show your love for baseball and the US with this custom designed flag."
}