Panasonic Toughbook CF-U1AQB1G2M Reference Manual page 17

Zoom Function
Transparency Setting
You can set the permeability degree for the zoomed screen.
Click icon on the notification area to display Zoom menu.
A
Click [Permeability].
B
Drag the slider right and left to set the permeability degree.
C
Click [OK].
D
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