Tuples are (slightly) more efficient for comparing if x in y. Not that it'll really matter at this scale, but it's technically better and simple to implement.
Applying to all files except theme.py, because theme.py is scary.
It's actually just the NAMES that got changed as part of the EDDN rework, so
this would have made no difference to the tests. But now a grep won't find
any instance of the old names.
