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Enhanced Visuals turns your screen into a status readout. The red pulsing at low health and the flash when you take a hit are not just atmosphere, they are usable information during fights.

Reading the Feedback

A brief flash on hit tells you damage landed even when you are looking away from your health bar.
Sustained red pulsing means you are in the danger zone and should retreat, eat, or drink a healing potion.
Potion effect tinting lets you confirm at a glance that a buff or debuff is still active without opening your inventory.

Practical Combat Tips

During boss fights, keep the low-health pulse enabled so you notice when you drop into one-shot range.
If the pulse obscures your crosshair, lower its opacity rather than disabling it entirely.
Combine the damage flash with sound cues: the flash confirms directionless hits, while audio tells you the source.
In PvP or hardcore runs, some players disable ambient effects but keep damage flashes on for maximum clarity.

Because these overlays react to your actual health value, they scale naturally: the closer you are to death, the stronger the warning. Use that gradient to decide when to disengage instead of guessing from the health bar alone.