- Colours for scrubber display when time remaining falls below a threshold value - Display negative values when time is up and diving continues; - count down remaining scrubber time only when the dive computer is not set to bailout - after all, there is not much point in counting down time if the diver is not breathing through the scrubber.

Imported from Ac6/SystemWorkbench/plugins/fr.ac6.mcu.firmware_1.14.7.201711101414/resources/builtin/:
* File syscalls.c