LaSSI (the Last Starship Save Inspector) is a free, open source, cross-platform, fan-made tool for inspecting and editing save files for "The Last Starship" by Introversion Software (https://www.introversion.co.uk/introversion/). Cross-platform UI made possible by Eto (https://github.com/picoe/Eto)
Dec 20-31, the tree turns red and green; Jan 1-3, the tree turns brown; then it’s back to black. This can be turned off in the Prefs menu.
Apparently now we don’t need to get ready for quit as a separate step on Mac either. I don’t know why.