When I insert a new row to one of my sheets it automatically comes with a gray background. All other rows have a white background. The only conditional formatting assigned to the sheet is to gray out the font once a date in a date-column is in the past.
In another sheet something similar happens: Some cells in the inserted row automatically get a gray background and, in addition, the font becomes bold. The only conditional formatting for that sheet is to gray out the whole row when a checkbox is manually checked (aka task done).
How come? How can I insert a row that has no (or a white) background with regular font (not bold). It's a minor inconvenience, but it bugs me 😏.