How do I get the blue line around my phone off my Galaxy S4?

[AC Question]

It seems to always be on?

 

[B. Diddy]

Welcome to Android Central! Is it only on the edge of the screen, or are you getting blue lines around areas you touch? If the latter, then go to Settings>Developer Options, and make sure none of those options are turned on. If Developer Options aren't turned on, then check ​Settings>Accessibility.