Panasonic KX-PS8000 Reference Manual page 91

Adjust the color by performing the following steps.
Drag each slider left or right, click I or H , or type the numerical
1
value then press the return key.
2
Click Apply to see the result of the adjustment in the Preview
Screen.
B To reset the setting, click Reset and Apply .
3
Click Close to close the window.
Adjusting Colors Intensity
91