Revert pipe visualisation to grey lines when voiding its contents

[Shabbers]

Sometimes when setting up oil youll mix up your water/oil pipelines and itll show both lanes as the same liquid. It would be a minor QoL if clicking on the flush pipeline also cleared the pipeline colour.

For example, mixing my planned light oil line with the existing petgas line.

06-29-2026, 16-52-20.png (6.7 MiB) Viewed 97 times