i made some modifications to display the fill level.
known issues:
- needs to be filled around 15k/350k before it starts displaying (the liquid graphic shifts up as it grows)
- steam fill level could not be scaled, so it will be at ~ 60% when it's full.
https://www.dropbox.com/s/8vyq72bsqhptkg6/pressure-tanks-update.zip?raw=1
(only contains changed files)
alternate color:
https://www.dropbox.com/s/rhkcy9fc3bhgn90/pressure-tank-1.png?raw=1
i hope you will find this useful
