Updating Brand Profile is a great way to keep Blaze creating content that's relevant to your latest offerings and customer segments.
Select Brand Kit, then click the Brand Profile, and click "Edit" to update your Brand Profile.
Note that editing your Brand Profile only affects next week's content. The changes won't be retroactively applied to content that has already been generated. If you want the changes to be applied to existing content you can use the Regenerate feature.