How to add a custom theme to your pop-up pie charts

Blog Post created by jvw122 on Jul 22, 2016

Here are some quick and dirty instructions to customize the theme of a pop-up pie chart in ArcGIS Online web maps. Let me know your thoughts.



  1. Create an AGO web map with a pie chart in the pop-up and save the map
  2. In a new tab, open AGO Assistant and login (if you are already logged it, it should easily log you in)
  3. In the ‘I want to…’ drop down, click ‘View and item’s JSON
  4. Find and click the web map with a pie chart in the pop-up
  5. Search the web page (Ctrl-F) for ‘piechart’
  6. Then find the line "fields": […], (including the comma) below the "type": "piechart", line; it will be multiple lines with the list of field names participating in the pie chart
  7. On the next line, add “theme”: “Tom”, (or other theme name from the Dojox Charting Theme Preview; must include the comma!!)
  8. Save the JSON in AGO Assistant
  9. Refresh/Reopen the web map in AGO map viewer and inspect