Examine source code of Mig-31 Historical

{
  "theme": {
    "images": {
      "theme_frame": "MIG31.jpeg"
    },
    "colors": {
      "frame": "#c9c1c1",
      "tab_background_text": "#141414"
    }
  },
  "version": "2.0",
  "name": "Mig-31 Historical",
  "manifest_version": 2,
  "description": "Ruský stíhaí letoun Mig-31 v barvách historické černo-bíle fotografie. Serie historických person letounu venovaná pilotum. Russian interceptor Mig-31 in historical photo collors. Historic aviation personas dedicated to pilots."
}