Finally, 16 bit per channel. It took freaking forever. Good job, guys.
The trouble with changing the guts of an image program to a new system is not just building the new guts, but then you realise it affects just about everything.
Source: I did the same thing on a much smaller open source project - not only was I still finding things broken up to 4 years later, but fairly early on, turned out I was the main person that understood the code after doing that, so became the maintainer too.