Examine source code of Celestial Guard

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#55572b"
    }
  },
  "version": "2.0",
  "name": "Celestial Guard",
  "manifest_version": 2,
  "description": "For those who want to give the front lines of Equestria the recognition they deserve.\n\nCredits:\nShadowstone for the Canterlot vector\nGturkey for Celestia's cutie mark\nChainChomp2 for Royal Guard vector"
}