A very quick & dirt job prompted by this thread on Typophile.
Latin alphabet in an Ashrian style, mostly using a 2x3 grid, and using only stacked triangular bricks. Capital letters represent the full letterforms and lowercase letters represent the truncated letterforms used in Ashrian printing and computer systems.
Ashrians are the inhabitants of Planet Ashr in my RPG video game "Seven Candles". Their signmakers, carvers, and woodworkers used triangular gouges for millennia to make their letterforms.
VERSION HISTORY:
16 Mar 2018 - v1.0 released.
The symbols found in Gravity Falls: Journal 3, created by Bill Cipher.
Gravity Falls and everything to do with it are the property of Disney.
-- Spoilers --
Bill drew this language in secret messages throughout the Journal, as well as a wheel which can be used for decoding.