Sub-thermo change popups

The fact that you only see the highest number out of the sub-thermos can make the high-level thermo readout useless in some situations. For example, if you have 20 doorways in your scene, then that top-level gameplay thermo readout will be completely useless from then on.

It would be cool to have an option that would not just show +1% in a top-level way when something changes integer... but show +0.013% connectors, etc. when any change is made. This would be the most useful, include the precision we'd like, and give us "power users" a quicker insight that is always more useful than the high-level one.