Why are my Deluge v1.3.15 proxy settings greyed out? How can I set them?
There is now only a single proxy setting that applies to all types of traffic.
This is by design and as a result of changes in the underlying libtorrent library. In Deluge 1.3 for simplicity, the other types are greyed-out to prevent any bugs.
Reference: 1.3.15 Release Notes