Examine source code of Metropolitan Police Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#010066",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Metropolitan Police Theme",
  "manifest_version": 2,
  "description": "This theme is based upon the traditional Metropolitan Police theme. I thank artist PGen98 for making this theme available on 7th September 2010 under the Attribution-ShareAlike 3.0 Unported License, which authorises sharing and adaptation of the material.\n\nChanges have been made from the original. Specifically, I removed the ER logo and moved the MPS text slightly to the left, (my browser's buttons were blocking the text).\n\nThese changes were not endorsed by the original artist. Thank you."
}