pipes update

[boeljoet]

in the last couple of updates we have seen a lot of love going towards rails and belts. and i feel like pipes have been hold back.

what moast people do is they lay down a pipe with no fluid in it. making a pipe for diferent kinds of fluid hard to distinguish(<- dificult word to sound smart but probaly wrong spelled, srry)
only by the time you have fired up the refinery you notice 2 pipes touching each other where it should not. and thus making you delete and rework most of the pipes with a wrong fluid.

trains recently has gotten an update letting us see rail segments (where and how to place down signals)
i was wondering if we could get something the same for pipes, a diferent color for every netwerk of pipes. making it better to see what goes where when it is empty.