Opticart is a family of glyphs inspired by Op Art (Optical Art). They include 133 models -- each letter is a subfamily that can combine overlapping (A, a, a.salt and A.swsh) and thus generate more than 365 glyphs, or thousands if we combine different letters or symbols.
Opticart is so easy to use, user does not need guidance, just repeat typing [aaaa, bbbb, etc.] or do overlap them and repeat [(a + A) (a + A) (a + A), etc.] You may overlay and combine shapes with colors as you please.