Theme Customizer Menu Item Order

How are the menu items inside the Theme Customizer ordered? There’s a priority setting in add_section for the menu categories. However, I’m not clear on how the individual items are ordered.

I assumed the order is by the add_control order and maybe the add_setting, but that doesn’t seem to be the case. Well…that was the logic when I had 4 or less menu items and now with 8 the order is a little jumbled up.