...FNT is designed to be
* accurate in tracing (each tracing step needs your confirmation),
* fast (operations using computer mouse is reduced with automatic searching),
* scalable (large volume data of tera-bytes in size are supported).
Other features include
* the results can be exported to SWC files,
* automatic detection of cycles during tracing,
* support for data of multiple channels,
* support for both 8-bit and 16-bit image data.