Examine source code of Sectional Chart

{
  "theme": {
    "images": {
      "theme_frame": "SectionalChartHeader.jpg"
    },
    "colors": {
      "frame": "#bcd39b",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sectional Chart",
  "manifest_version": 2,
  "description": "This a piece of a sectional aeronautical chart. A persona made for pilots."
}