This example shows how to use the ngeo-query component in combination with the gmf.datasource.Manager. The DataSourcesManager fetches the themes returned by the theme service and adds one DataSource, which is used by the querent service per layer definition found. In this example, the layer tree is responsible of creating the layer. You can switch theme and turn on/off layers to see the impact it has on results returned by the query service. To display results, this example use the gmf-displayquerywindow component. Here, this last directive uses a custom style to display all selected features.