This parameter determines which alert box this alert will show up in, and thus should be one of the following: follow, subscription, donation, or host.

The href pointing to an image resource to play when this alert shows. If an empty string is supplied, default image will be displayed.

The href pointing to a sound resource to play when this alert shows. If an empty string is supplied, default sound will be played.

The message to show with this alert. If not supplied, no message will be shown. Surround special tokens with *s, for example: This is my special alert!

Acting as the second heading, this shows below message,

How many seconds this alert should be displayed. Value should be in milliseconds.Ex: 1000 for 1 second.

The color to use for special tokens. Must be a valid CSS color string.