Title Bar sub-component colour cannot be set to other colour except white

Hello Developers…

I need a solution for a problem I’m facing right now. My target app theme (you may say material color theme) is White-Gray-Black.

I wanted a Title Bar with white colour and that was successful. But the problem is I cannot set the ‘menu icon’ colour and other property like ‘Title Text’ colour with any contrasting colour like Black or Gray.

Can anyone help with that?