Examine source code of Night job

{
  "theme": {
    "images": {
      "theme_frame": "Nvtelen3.jpg"
    },
    "colors": {
      "frame": "#5f8f5a",
      "tab_background_text": "#1e3612"
    }
  },
  "version": "2.0",
  "name": "Night job",
  "manifest_version": 2,
  "description": "I used to work a lot by night, so I have created this Persona, using my son's artwork to make me fun."
}