I love these letters because of how light and cheerful they are to look at. The thin and thick lines add a sense of stability with room for play and goofiness without being over the top. It is the perfect amount of seriousness and playfulness.
Comment: I like the idea of using a fixed shape (in this case- a triangle) to base a series of symbols. It reminds me how Bionicle had an alphabet that used circular symbols.
Matoran alphabet—from Lego's Bionicle series NO WAY. I- I dreamed this alphabet! I had a dream once in which my latin teacher was teaching this language instead! I had no idea this actually existed back then!