We use --freeze-whitespace (-fws) as perltidy option, this however leads to inconsistencies in various calls. It's all eye candy, I get it.
I propose to use '-baao -bbao' these adds spaces after and before operators. '-nsfs' removes spaces around semicolons and '-pt=2' which removes spaces after ( and before ). We already try to strive to these, but they are not enforced by tidy.
Another question is if we want to limit line length, eg. '-l=120' for line length of 120 chars. Can help with github reviews, these are pita in case of long lines.