# flash parameter (skin)

Source: https://ref.dm-lang.org/skin/param/flash

### Applies to
> [Main](https://ref.dm-lang.org/skin/control/main.md) (window only)

### Format
> `number`

### Default value
> 0

Set to a positive number to make the window flash that many times, -1 to flash forever, and 0 to stop flashing.