Looking for some input on this. So usually, in an Android app, you have a single colored toolbar at the top with the hamburger icon on the left. We've opted to make that toolbar transparent, and allow content to be seen under it, which provides some more vertical screen space and looks pretty neat. The issue is, the menu icon is sometimes hard to see depending on the content behind it at the time. We've looked at some options but currently we've added a very slight gradient scrim to the top of the app, which helps with the menu icons visibility immensely.
The scrim does cause the content of the app at the top to appear to have a slight shadow on top of it though, so I was wondering if any of you had any other ideas on how to increase the visibility of the menu icon without using the gradient scrim.