Phlogiston's "Project" is not the same thing as Phabricator's "Project", so they shouldn't have the same name. Same for Milestone, now that Phabricator uses Milestone.
[x] Ask TPG (and public list) for better names
Project -> "Source" and, Milestone -> "Category"
See https://lists.wikimedia.org/pipermail/teampractices/2016-March/001036.html and
[ ] Rename in UI and code and filenames
[x] Rename #Milestone tag in Phabricator