Yes I am aware of that option, but I already have specific icons per entity in use, given that is the purpose of that feature. I would need to stop using the current icons feature per entity, to solve the issue of this post, and that is not a great workaround.
I think the easiest to implement is actually what I suggest in this topic, since the feature is already present in list views.
Alternatively, permanent database icons would be a great solution, as requested before: