Color Theory & Typography
I decided to go with vibrant colors for the alerts and the privacy. The cyan was both trustworthy and exciting to our users. The amber is used when someone is caught trying to screenshot a conversation, amber is known to draw attention. The dark colors were reserved for the backgrounds, they signify comfort and mystery.
Because each letter would be covered we had to choose a Unicode font. These fonts are traditionally unattractive and outdated, reminiscent of times passed. I decided to use Avenir a modern font that would compliment the Unicode font we were forced to use.