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Note
The spot area is controlled, with the screen divided into 256 steps (16 horizontal steps x
16 vertical steps).
For both width and height, the minimum size is for 1 step, the maximum size is for 16
steps.
It's impossible to set areas in arbitrary shapes and multiple areas.
When an area is displaced off screen when the setting area has reached the right or
lower limits of the screen (when clicking any of
,
or
), the setting area may
get narrow.
