{
 "customLayers": [
  {
   "name": "ACS Census Tracts",
   "id": 0,
   "data download link": "https://geodata.md.gov/imap/rest/directories/arcgisoutput/DEMO_AmericanCommunitySurveyTracts_MDP.zip"
  },
  {
   "name": "ACS ZIP Code Tabulation Areas - ZCTAs",
   "id": 1,
   "data download link": "https://geodata.md.gov/imap/rest/directories/arcgisoutput/DEMO_AmericanCommunitySurveyZCTA_MDP.zip"
  }
 ]
}