ClearOne Impress IM100 User Manual - Manual (Page 72)

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VISUAL EFFECTS
Text Boxes, Logos, and Overlay Regions have an additional format section called “Visual Effects.”
Here you can change the visual appearance of the object by setting its transparency/opaqueness
or alpha blending.
Transparency: Set this to make your object transparent. Set the Key Color to match the color
of the background of your object. This color will be “keyed” out, thus making the object appear
transparent.
Alpha-Blending Using Source: The image formats .PNG and 32-bit .BMP support a pixel by pixel
alpha blending. Currently, this is really only used for logos. If this was used in your image, then click
this setting so that any transparency settings in the image file will used.
Alpha-Blending Using Constant: This setting will cause the entire object’s transparency to
change. Use the slider bar to set how transparent or solid you want to object to look. The higher the
number the more solid it will appear, and the lower the number the more transparent it will appear.
(Alpha Blending can only be done on an AV400 or higher).