Sony VPL-VW60 Operating Instructions (VPL-VW60) Operating Instructions Manual page 49

Test Pattern
Background
Displays the test pattern.
When set to "On," a test pattern appears on the screen to be used
when adjusting the lens with "Lens Focus," "Lens Zoom," and "Lens
Shift," or correcting the screen proportions with "V Keystone." A
test pattern does not appear when this item is set to "Off."
Tip
While the test pattern is displayed, it is only displayed in green to
allow you to adjust the focus easily.
Selects the background color of the screen when no signal is
input.
You can select "Black" or "Blue".
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