Hello,
I currently tested the AppCompat using a Toolbar with the DrawerLayout.
We use a black back button on a white toolbar.
This works fine on > Lollipop.
But on API16 I noticed a strange behaviour:
1) Open the app (hamburger is shown)
2) Push any page on the Navigation stack (back button, black arrow is shown)
3) Push another arbitrary page on the stack (back button, white arrow is shown, but for sure you can't see a white backbutton on a white toolbar, but it's there)
I do not change the back button color programmatically.
Any ideas on this?