Examine source code of Hello Gorgeous

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#f22411",
      "tab_background_text": "#37e8d9"
    }
  },
  "version": "2.0",
  "name": "Hello Gorgeous",
  "manifest_version": 2,
  "description": "Hello"
}