StarTools

1.7.422a

startools log has an UNKNOWN
--- Shrink
Parameter [Mode] set to [Tighten]
Parameter [Halo Extend] set to [1 pixels]
Parameter [Iterations] set to [15]
Parameter [Regularization] set to [0.80]
Parameter [De-ringing] set to [5 pixels]
Parameter [UNKNOWN] set to [2.0 pixels]
Mask saved [..................NewComposite_mask stars 230920.tiff].
Mask used (BASE64 PNG encoded)

Thank you!
This will be fixed in the next version. This next alpha release has been a long slog with a complete Wipe rewrite. Almost there...

that's great thank you