ESRI eye is default layer widget you will see everywhere on any office ESRI product.
You do not have alternative choice but seeing this ESRI eye since 10+ years ago.
I am sick of seeing this ESRI eye
so invent this new tree series, with similar capability as original ESRI eye
tree3000
Map image layer do not have pop up like feature layer, it use identify tool to extract each layer's info
https://transparentgov.net/json2tree/arcgis/js4/mapimagelayer_tree.html?layer_id=-99999&layer=NavigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=10&_center_lat=34.02106886643995&_center_long=-118.41176680763678&selectedItemIdArray=-99999&select_item_id=422&select_item_text=422+%26%23x21E2%3B+LAPD+Divisions%3Csup+style%3D%22font-size%3A8px%22%3Epolygon%3C%2Fsup%3E&select_item_type=layer
tree2000
feature layer have popup template which is different from map image layer identify tool
https://transparentgov.net/json2tree/arcgis/js4/featurelayer_tree.html?layer_id=-99999&layer=NavigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=10&_center_lat=34.02106886643995&_center_long=-118.41176680763678&select_item_id=422&select_item_text=422+%26%23x21E2%3B+LAPD+Divisions%3Csup+style%3D%22font-size%3A8px%22%3Epolygon%3C%2Fsup%3E&select_item_type=layer
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices&org=Los+Angeles+CA+Public+Works+NavigateLA&_center_lat=34.049039&_center_long=-118.246521&_center_zoom=17&cross=default&timeout=3000&arcgis_online_token=&select_folder=20&select_layer=-1