Dell 5130 Color Laser User Manual page 272

This option is available only for color printing.
-Ct
Specifies color transformation.
This option is available only for color printing.
-Br=mode
Specifies brightness adjustment.
Available brightness adjustment option values are as follows:
+5
Bright 5
+4
Bright 4
+3
Bright 3
+2
Bright 2
+1
Bright 1
+0
Normal
-1
Dark 1
-2
Dark 2
-3
Dark 3
-4
Dark 4
-5
Dark 5
-RGBc=mode
Specifies RGB color correction.
Available RGB color corrections are as follows:
10
Perceptual
11
Saturation
12
RelativeC
13
AbsoluteC
This option is available only for color printing and when entry data is RGB data.
-RGBPr=mode
Specifies RGB input profile.