It's always bugged me that every post from Statuspage.io to Slack has a yellow bar... can that be changed to reflect the status of an incident? Red=Outage, Yellow=Investigating, Green=Resolved, etc??
Hi @mlovasco, welcome to the Atlassian Community!
Other than the more advanced option to Use custom CSS on a status page, the built-in option to customize the colors for "both your status page and email notifications" is apparently not documented within Create and customize your status page, but available in the administrative UI via the 'Customize page and emails link' regardless:
Please note though that this requires at least 'Basic customization' support, which means it's probably not included in the free plan right now.