Examine source code of exmapx

{
  "name": "exmapx",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "exmapx.jpg"
    },
    "colors": {
      "toolbar_field": "rgba(77, 0, 90, 1)",
      "frame": "rgba(95, 121, 122, 1)",
      "tab_background_text": "rgba(199, 63, 204, 1)"
    }
  }
}