Dark Mode For Any Android Apps

[Tasin]

How can I turn on Dark Mode for any Third pirty application like Facebook, WhatsApp etc..It seems fishy that Playstore and Instagram work with the system dark mode like when I turn on Dark mode the whole Instagram and Playstore turns dark and when I turn off dark mode its goes normal.But my question is why doesn't this process work with Facebook and other third party apps? Is there any feature by which I can apply dark mode in any android apps in Samsung Galaxy A50 running on Android Pie? 

[khalidaznawi]

dark mode depends on app, at the moment if we choose dark mode on our Samsung, only Instagram hv this version. others still as normal

[Tasin]

yup also Play Store have this.. but other androids like Oppos subbrand Real Me has given the feature as default to apply dark mode in any apps recently.

[hooshaupwah]

w

[HbkSunny]

you can go developer option to enable force dark mod

[Tasin]

but I can't find any force dark mode option in there

[Edster89]

Not yet available. This will be in the new one ui 2 update