From sona pona, the English–Toki Pona wiki
sitelen pona (sitelen-pona) is a logographic writing system for Toki Pona designed by Sonja Lang, the creator of the language. It is the most used original writing system in Toki Pona, and the second-most after sitelen Lasina (the Latin script). Learners might find sitelen pona useful for memorizing words' meanings.