Celtic CE is a library for TI-BASIC programs, which allows programmers to use many powerful commands and tools otherwise not possible with TI-BASIC. These include graphical commands, such as drawing sprites, shapes, and text, along with commands for running programs and hex code, creating and manipulating files, and more! As a successor to libraries such as Celtic 2 CSE and Celtic III on older calculator models, Celtic CE brings many commands over from past TI-BASIC libraries, along with offering full compatibility for TI-BASIC programs written to use Celtic 2 CSE. All information for commands and general usage can be found in the official documentation, which is linked in the README. Enjoy!