OptionaldelayOptionalpermanentWhether the message will require user interaction to be dismissed. This overrides the delay field
OptionalseverityThe level of importance of the message.
When set to 'success', the message is green.
When set to 'warn', the message is yellow.
When set to 'error', the message is red.
When set to 'info', the message is the default background color.
OptionaltextThe body of the message
OptionaltitleThe header of the message
The time in ms that the message will persist. This is overriden by the permenant field