TTMSFNCDatePicker how to set color (component color ...)

Good afternoon to all,
i have a little problem with setting color to this component ..... again.
My first topic was in 2019 ....
The problem i have is how to fix the component color even when i click into it in order to show the calendendar.
I set the TTMSFNCDatePicker color with TTMSFNCDatePicker.Fill.Color property (for example to red) and the component get the red color.
But when i click to show the calendar, the component will change the color and return to defaul one (Fill.color = White Fill.colorTo = Gray); When i leave the mouse button, the component color return to one was setted.

How is possible avoid this behaviour?

Thank you for attention ..
Daniele

Can you provide us with some more details, a code snippet? The default behavior is actually a fixed color set for the combobox.