Overlays

Overlays are one of the types of menus which allow you to access/see different characteristics of your Colony.

List of overlays

Icon	Type	Hint
	Oxygen Overlay	Displays ambient oxygen density (F1)
	Power Overlay	Displays power grid components (F2)
	Temperature Overlay	Displays ambient temperature (F3)
	Materials Overlay	Highlights the different solids, liquids and gases and groups them by type (F4)
	Light Overlay	Displays the visibility radius of light sources (F5)
	Plumbing Overlay	Displays liquid pipe system components (F6)
	Ventilation Overlay	Displays gas pipe system components (F7)
	Decor Overlay	Displays decor values (F8)
	Germ Overlay	Displays disease risk areas (F9) The same overlay is also opened when the "Disinfect buildings" action is selected (I)
	Farming Overlay	Displays plant growth progress (F10) A very similar overlay is opened when the "Harvest plants" action is selected (Y)
	Room Overlay	Displays fully enclosed rooms (F11)
	Exosuit Overlay	Displays suit locations (Shift+F1)
	Automation Overlay	Displays automation systems (Shift+F2)
	Conveyor Overlay	Displays conveyor transport components (Shift+F3)
	Radiation Overlay	Displays the visibility radius of radiation sources (Shift+F4)
	Priority Overlay	Displays and assigns the different priorities (P)

The later ones only become available once the according research is done, e.g. the Exosuit Overlay only appears if the Hazard Protection research has been done.