Some Groovy programming styles use dynamic references only rarely
and any dynamic reference (as indicated by the underline decoration)
is subject to closer inspection.
When checking the code for possibly unwanted dynamic references that
may arise from e.g. typos or other accidents it would be very helpful to
quickly scan through all of them.
This could be done with an action like "find next", or highlighting, or a
specialized search, a gutter warning sign, or whatever else seems
appropriate.