Nativetitlebar color change

Hey there! first time posting. Currently we’ve tried using the non native title bar and while look wise we can get what we want, not having the windows snapping features is a bit of a no go. We’ve opted to use the native title bar (setUsingNativeTitleBar), but unfortunately the color for the titlebar is quite light, and our app is dark, so I just need to be able to change it to make it uniform to our app. can’t seem to find where this is changed.