This is a small patch that fixes a handful of rare bugs, and also hopefully makes low oxygen levels more visible. (Spoilers below!)
Internal
In the breathability overlay, very low levels of oxygen (less than 200g) are now shaded red
Balance
Decreased the impact of "starving" buff from -50% happiness to -40% happiness
Increased length of "visited ruins" buff (+10% happiness) for archaeologists from 0.25 days to 2 days
Increased the maximum length of a tantrum from 0.1 days to 0.2 days
Decreased explorer base walking speed from 4 tiles/second to 3.8 tiles/second
Fixes
Fixed explorers occasionally getting stuck in an infinite loop if they were trying to pick up an item that had moved
Fixed a very rare rendering crash that could occur when starting up a new game
Fixed the gas or liquid filter dropdown not working if UI scale was set to 110% or greater
Fixed a crash that could occur if a sad peacemaker explorer tried to write a diary entry after all explorers had died but since been revived
Fixed a crash that could occur if an enthusiast explorer tried to write a diary entry about a second explorer death, but all other explorers had also died
Fixed a crash that could occur if a peacemaker tried to write a diary entry about a second explorer death who was their best friend, and had since been revived
Fixed a very rare bug where a distress beacon may have not requested any solid elements after investigation
Fixed text clipping when selecting the "advanced research" node in the research tree
Fixed a rare crash that could occur if a cryochamber was at x=64 or x=128
Fixed a crash that could occur if an errand's priority was changed but the errand was completed before the priority change took effect
Fixed a crash when trying to load a demo save file when the distress signal had already been transmitted