https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-pinpoint-campaign-campaigninappmessage.html
AWS::Pinpoint::Campaign CampaignInAppMessage - AWS CloudFormation
Specifies the appearance of an in-app message, including the message type, the title and body text, text and background colors, and the configurations of...
awspinpointcampaigncloudformation