Version 1.5.367. Largeish but not massive (5202x3465). Gamma slider to 0 also crashes - I think this isn't an image size issue, but an over/underflow problem.
Fixed in 1.5.368, which is up for download now. I also dropped the ball on some color seperation code for RGB-only images last version. It's fixed now too. Upgrading is highly recommend.
Ivo Jager StarTools creator and astronomy enthusiast
That's great thanks for the new release.
Develop to 100% is now not crashing. Fixed.
Unfortunately the gamma slider to 0 is still crashing for me
W10 64Bit