Examine source code of Review Mirror

{
  "theme": {
    "images": {
      "theme_frame": "personas-RM-01-header.jpg"
    },
    "colors": {
      "frame": "#5e5e5e",
      "tab_background_text": "#fcf9f9"
    }
  },
  "version": "2.0",
  "name": "Review Mirror",
  "manifest_version": 2,
  "description": "This is a picture taken through my review mirror over a sunset in \"San Miguel de Allende\" city, on Guanajuato's State; México.\nHope you like it.\nGreetings"
}