Template:ListFlag/doc

This template is used to display a flag in a table, especially for flag lists, and improve the display of flag where standard image syntax is either not possible. On mobile devices, this template will prevent the image from being resized to smaller size.

Syntax
The first parameter should be any flag file name without  prefix (default: Flag of None.svg), the second parameter is used to specify image size (default: 100x100px), the border (or b) parameter can be used to cancel the border, the checker (or c) parameter can be used to generate a checkered background to indicate transparency, which appears when the cursor is hovered over the image, or long press the image on touch screen.

The alternative text can be added with alt parameter or title parameter (with a tooltip).