Apple TV/FM Radio System - Manual (Page 116)

Dragging the size box
If you drag the size box, the horizontal and vertical
dimensions of the screen change proportionally.
If you drag the size box while holding down the Shift key,
the image becomes distorted. (It stretches or shrinks in the
direction that you drag.)
Changing the window color
You can set a new color for the border surrounding the
video window by choosing Window Color from the Windows
menu. The current color is checked. The choices are Dark
Gray, Green, Blue, Magenta, Red, and Gold.
“Window Color” is not the display color: The Window
Color command has no effect on the colors you see in the
video window. For information on setting the brightness,
sharpness, contrast, and color in the video window, see
“Adjusting the Picture” in Chapter 5.
109 Other Features