An event to provide changed-like-event, without touching the original layer.
With source layer uid and free reason why/by/for it's fired.
Example: fire/listen to silently set layer opacity (as reason) without touching the real
layer and having to listen to every layer individually.
An event to provide changed-like-event, without touching the original layer. With source layer uid and free reason why/by/for it's fired. Example: fire/listen to silently set layer opacity (as reason) without touching the real layer and having to listen to every layer individually.