TL;DR
Color-coding the spoilage bar to indicate how fast something will spoil, in addition to showing the % progression.What?
Make it obvious that some of these things will spoil in a matter of seconds while others have far longer remaining:This could be done with a red bar if < 1 minute to spoiling, orange bar if < 5 minutes to spoiling, and yellow bar if < 15 minutes to spoiling.
Open to suggestion to ensure this is useful even with colorblindness.
Why?
New players are struggling to recognize the importance of the different spoilage timers on their production lines. If they saw that items with red, orange, or even yellow spoilage bars were the ones causing the greatest difficulty (needing shorter lead times) then they might learn faster.Yes, this information is available on the tooltips, and can be obtained by combining the spoil time with the % indicator mentally, but this is an extra step.
This functionality would also help the learning of modded content even after the DLC is old hat.