Examine source code of Orbiter 2

{
  "theme": {
    "images": {
      "theme_frame": "A12ReentryoverTonga_1.png"
    },
    "colors": {
      "frame": "#0009ff",
      "tab_background_text": "#fffb00"
    }
  },
  "version": "2.0",
  "name": "Orbiter 2",
  "manifest_version": 2,
  "description": "Based on Orbiter Space Flight Simulator. Header view is of Apollo 12's reentry over Tonga."
}