Inconsistent use of "corner node" and "cusp node"
I just noticed we inconsistently use both terms in the UI. For example in the node toolbar we use "corner node", however when snapping we use "cusp node". The internal name (in Inkscape code) and likely the original name is "cusp node".
We should decide on one or the other to achieve consistent naming.
Personally I prefer "cusp" as it seems more precise and I actually always thought that's how the thing was called (probably because I saw it on canvas all the time when snapping) but I'm curious what others think.