Percival painlessly perceives (perhaps, ‘pretty prints?’) peoples’ precious, preferred possessions.
In other words, Percival is a pretty printer / inspector for JavaScript objects. It supports printing to the terminal, ANSI colourization, recognizing and demonstrating recursive memberships at multiple levels, and ‘lenses’ for your own special objects and types.
Released for public usage under the terms of the ISC license. (See COPYING.)