Examine source code of my_sample_persona

{
  "theme": {
    "images": {
      "theme_frame": "banner.jpg"
    },
    "colors": {
      "frame": "#3fa38f",
      "tab_background_text": "#1e4eb0"
    }
  },
  "version": "2.0",
  "name": "my_sample_persona",
  "manifest_version": 2,
  "description": "this is my first sample persona"
}