GREAT PLANES RealFlight 7 User Manual page 92

To select a color, click the desired color on the palette. If you wish to
make a custom color, click the Define Custom Colors button and
create the color or colors to suit your tastes. Click OK to finalize the
selection. The selected color will be reflected immediately in the value
column.
Background Color-
This setting allows you to adjust the color of the background for the
Instructions messages.
To access the options pertaining to the background color, click on the
current displayed color.
To access the color palette for the background color, click on the
current displayed color, then click the more options button that
appears to the right (the gray button with the ellipsis). To select a
color, click the desired color on the palette. If you wish to make a
custom color, click the Define Custom Colors button and create the
color or colors to suit your tastes. Click OK to finalize the selection.
The selected color will be reflected immediately in the value column.
Background Alpha (%)-
This option adjusts the transparency of the text background for the
message.
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