Flag shape, flag size and the arrow

The Button details card on the Trigger tab has three settings:

Setting	Choices	Default	Notes
Flag shape	Circle, Rounded, Square	Circle	Used in the button, the language window, the grid and the dropdown
Flag size in the button	14 to 40 px	20 px	Only the button. The language window has its own flag size on the Modal tab
Show a small arrow	On / Off	On	A ⌄ after the flag or name, so visitors see the button opens a list

The arrow can also be turned off for one button: English (US), the block’s Show chevron arrow switch, or 'show_arrow' => false in PHP.