KeyValuePair<CategoryKey, Color>? item
In 4.7.22 I can't make this StyleCop-clean.
As written, SA1015 complains that there is no space after the closing bracket.
Adding a space makes SA1018 complain that a nullable type symbol should not be preceded by with space.
SA1015 says "A closing generic bracket should be followed by an open paranthesis (sic!), a close parenthesis, a closing generic bracket, an end of line or a single whitespace (but not whitespace and an open paranthesis)."
How should this be fixed? Should the SA1015 rule be modified to allow for a single "?" as well?