I wish this helpful for you The correct answer in the end was as Igy suggested. Your new display name will only be visible to users after a change when you have your Facebook app reviewed and approved.
fixed the issue. Will look into that further When Im publishing a post on my wall through the Facebook API and I don't set an image, de default Facebook icon appears. Someone know's how I can change this icon? , Set an image which looks like an icon ;)
Is it possible to change Facebook login button image in Facebook Android SDK3?
wish help you to fix your issue I ended up overriding the text to be empty string and then defining the setBackgroundResource of the button to my image (didn't need the dynamic login/logout text functionality)