- Add bounds checking in decode_varint_content to prevent undefined behavior if decoded enum value exceeds 31
- Add clarifying comments that 32-bit loops in encode_content and get_size_calculation are intentional to support the full range of enum_as_bitmask (enums with up to 32 values)
- The uint32_t storage type supports general-purpose enum_as_bitmask, not just ColorMode's 10 values