VIA V3 - The Custom UI Update (#18222)

quantum/dynamic_keymap.h

@@ -54,6 +54,12 @@ void dynamic_keymap_set_buffer(uint16_t offset, uint16_t size, uint8_t *data);
 // strings, the last byte must be a null when at maximum capacity,
 // and it not being null means the buffer can be considered in an
 // invalid state.
+//
+// The buffer *may* contain less macro strings than the maximum.
+// This allows a higher maximum number of macros without requiring that
+// number of nulls to be in the buffer.
+// Note: dynamic_keymap_macro_get_count() returns the maximum that *can* be
+// stored, not the current count of macros in the buffer.
 
 uint8_t  dynamic_keymap_macro_get_count(void);
 uint16_t dynamic_keymap_macro_get_buffer_size(void);