Tv LayerDisplay
From TVPaintWiki
tv_LayerDisplay LayerID ["LightTable"]["On"|"Off"|0|1]
Changes the display state of the layer with identifier id. The state argument may be equal to "ON", "OFF" or "LightTable". It indicates whether the layer is to be displayed ("ON") or masked ("OFF"). This command returns the former state of the layer (ON or OFF), or OFF if an error occurred. Note that this command has no effect on the current layer.