For example, say I have this map: It would take me ages to create a dynamic lighting layer with the tools provided. So say I hop into photoshop and create this .png file: I should be able to drag and drop this onto the dynamic lighting layer and have it act in the same way the line tool does. But I cant. It would save a whole bunch of time. Artists could publish sidecar files specifically for roll20's dynamic lighting, DMs could create simple lighting layers in a fraction of the time.