When i displayed vowels and tones in Thai , it doesn’t display properly tones . And sometimes can be displayed tones but not the vowels follows
are the tones and vowels made up of different characters? There is a limitation when the resulting glyph has to unicode representation
Complex languages where subsequent characters combine into a single glyph and where the resulting glyph has no individual Unicode representation (e.g., Devanagari), have limited support in LVGL.