Github user aledsage commented on the issue:
https://github.com/apache/brooklyn-library/pull/128
@tbouron yes, the rest endpoint `/children` also includes the `iconUrl`
(for both the `pr-128-top-level` and `pr-128-inside-item`). I deployed the app
shown below:
```
services:
- type: org.apache.brooklyn.entity.stock.BasicApplication
brooklyn.children:
- type: pr-128-top-level
```
and then queried (via curl) for the children of the basic app.---
