Inserting a row changes vertical align back to 'bottom'

I have an agenda in a google sheet, and every time I add a new row, the vertical alignment sets back to 'bottom' for that new row, instead of 'middle' where I previously set the whole sheet (using that little grey cube in the top left corner).

Is there a way to set vertical align middle as the default for the entire sheet, even newly added rows? Not to mention cell wrapping and other things.