Pettifogging often implies undue attention is being paid to trivial things that are not very important. His pettifogging complaints about the event's font size were annoying.
Pro Tip 2/3
Negative Tone
Using 'pettifogging' suggests a negative judgment about someone's focus on minor details. The pettifogging critic focused on the painting's smallest flaws.
Pro Tip 3/3
Annoyance Expression
Expressing annoyance or frustration with someone, 'pettifogging' conveys their actions are irritating. I'm tired of your pettifogging over the schedule.