Adjust map layer transparency in ArcGIS Instant Apps

Summary

In ArcGIS Instant Apps, map layer transparency can be adjusted when an app is created. Modifying the transparency improves visual clarity when multiple datasets overlap, and reduces the visual dominance of certain features so other information remain equally visible. This functionality is currently only available for the Atlas template in ArcGIS Instant Apps. 

Procedure

1. In ArcGIS Instant Apps, under Create, select the Atlas template by clicking Choose.
2. In the Create app - Atlas panel, specify a title for the app.
3. In the toolbar, ensure Express mode is toggled on.

4. Click Step 1. Atlas, and click Choose Content.
5. Click Choose Layers to add layers from ArcGIS Online.
6. Click Add layer on the toolbar at the bottom of the window, and click Add to add the layer into the app.
7. Click Map layers to open the Map Layers panel.
8. In the Map layers panel, click Adjust transparency  and adjust the transparency using the slider.

9. Click Publish to publish and save the app.