How do i change Themes? Updated May 24, 2017 13:54 Follow Navigate to Menu tab (upper left corner) > Settings > Appearance >Theme. 1.) 2.) 3.) Related articles What is Professional and how do I buy it? Introducing Truecaller 8 for Android with SMS capabilities and a brand new look! How to make Truecaller your default dialer Who can see my personal profile photos of my contacts? How to unblock a phone number? Comments 0 comments Please sign in to leave a comment.