Polycom SIP 3.1 - Manual (Page 343)

Administrator’s Guide Addendum for the SoundPoint IP 450
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Background <bg/>
This configuration attribute is defined as follows:
Attribute
Permitted
Values
Default Interpretation
bg.gray.selection w,x 2,1 Specifiy which type of background (w) and index
(x) for that type is selected on reboot.
bg.medRes.gray.pr.x.adj -3 Specify the brightness adjustment to the graphic.
bg.medRes.gray.pat.solid.x.
name
any string White Solid pattern name.
For x=1: White, x=2: Light Gray, x=3, 4: Null
bg.medRes.gray.pat.solid.x.red 0 to 255 The screen background layouts.
For x=1, red (255), green, (255), blue (255)
For x=2, red (160), green (160), blue (160)
For x=3 and 4, all values are Null.
Note: The values for red, green, and blue must be
the same to display correctly on grayscale.
bg.medRes.gray.pat.solid.x.
green
0 to 255
bg.medRes.gray.pat.solid.x.
blue
0 to 255