Image Detail Boost
https://www.youtube.com/embed/GNezJKveMRc
The Image Detail Boost function increases the sharpness of the contours of heated
objects, which increases their detail. The result of the function depends on the selected mode
and observation conditions: the higher the contrast of objects, the more noticeable the effect.
This option is enabled by default, but can be disabled in the main menu.
The description of enabling/disabling the Image Detail Boost function is available here.