those fields are unused

rest-api/src/main/java/lcsb/mapviewer/api/projects/overlays/OverlayRestImpl.java

@@ -79,18 +79,15 @@ public class OverlayRestImpl extends BaseRestImpl {
     result.put("order", overlay.getOrderIndex());
     result.put("description", overlay.getDescription());
     result.put("publicOverlay", overlay.isPublic());
-    result.put("defaultOverlay", false);
 
     result.put("type", overlay.getColorSchemaType());
     result.put("genomeType", overlay.getGenomeType());
     result.put("genomeVersion", overlay.getGenomeVersion());
 
     result.put("googleLicenseConsent", overlay.isGoogleLicenseConsent());
-    result.put("images", new ArrayList<>());
     if (overlay.getCreator() != null) {
       result.put("creator", overlay.getCreator().getLogin());
     }
-    result.put("inputDataAvailable", overlay.getInputData() != null);
     return result;
   }