Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-14 21:02, hash: rB65168825e0b0
Worked: 2.79 any
Short description of error
In 2.8 tube and limits have full line and indistinguishible from main shape.
In 2.79 limit-lines are dashed.
Also for both: tube have the same diameter as main empty by default. It is not good for reading too.
I suggest to make default limits slightly thinner, when radial maximum and minimum is`n used, like this: