Is your feature request related to a problem? Please describe.
It's impossible to determine at a glance (without hovering over the pipe) to see which upgrade (if any) a pipe has installed.

Describe the solution you'd like
Change color of the gasket in pull config to reflect installed upgrade, for example white for no upgrade and red for highest.

Describe alternatives you've considered
This is the most intuitive solution i could come up with. Everything else relies on player input which makes it tedious.