Ksp reference Manual

0
(fully transparent) to 
255
(fully opaque)
$CONTROL_PAR_WAVETABLE_COLOR
Sets the color of the whole wavetable
$CONTROL_PAR_WAVETABLE_ALPHA
Sets the alpha channel (opacity) of the whole wavetable
Range: 
0
(fully transparent) to 
255
(fully opaque)
$CONTROL_PAR_BG_COLOR
Sets the background color of the wavetable widget.
Colors are set using a hex value in the following format:
9ff0000h {red}
The 
9
at the start is just to let KONTAKT know the value is a number. The 
h
at the end is to indicate that it is a hexadecimal
value.
$CONTROL_PAR_BG_ALPHA
Sets the alpha channel (opacity) of the background of the widget.
Range: