NegPy 0.30.2

0.30.2

• Cast Removal — cleaner highlights — the per-channel gray balance now anchors a third (highlight) reference, fitting a curve through highlight/midtone/shadow instead of a line. Fixes highlights occasionally overcorrecting past neutral (toward magenta) under 0.30.1.
• More bundled crosstalk profiles — additional Lab Crosstalk matrices for common film stocks, derived from official datasheets. @jboneng