Examine source code of Mesa Rectifier

{
  "theme": {
    "images": {
      "theme_frame": "mesaheaderimage.jpg"
    },
    "colors": {
      "frame": "#f7f4f4",
      "tab_background_text": "#050105"
    }
  },
  "version": "2.0",
  "name": "Mesa Rectifier",
  "manifest_version": 2
}