Examine source code of Chevy57

{
  "theme": {
    "images": {
      "theme_frame": "chevy1.jpg"
    },
    "colors": {
      "frame": "#afc9fa",
      "tab_background_text": "#bcdff5"
    }
  },
  "version": "2.0",
  "name": "Chevy57",
  "manifest_version": 2,
  "description": "57 Chevy inspired Persona"
}