HUD Scale - Spazley/ScalingGUIs GitHub Wiki
The HUD Scale slider controls the scale of the ingame HUD.
Changing it like in the image below will produce a HUD scaled differently than GUIs. *Note: The GUI scale setting is 4 while the HUD scale setting is 2.
HUD:
Setting changes won't show until after you close the main ScalingGUIs menu.