Has the Gmail app on your Android smartphone been freaking out when you try to access your primary email account? Google says it's aware of the issue, and is fixing it as we speak. Here's the good news from BrittanyBee on the Google Product Forums:
Beginning this morning, we've received reports of a bug causing some Gmail users on Android to experience screen flickering when they open the app. We are in the process of fixing it and the issue should be resolved shortly. We apologize for any inconvenience.
It's a pretty interesting bug, as bugs go, as it reveals the true nature of the Gmail app to users affected by the issue. In case you weren't aware, a good bit of the app's functionality lives in the web on Google's remote servers, above and beyond the actual email data. See a couple examples of the bug in the two videos below.