Many SharePoint farms display the below warning. Unfortunately it tends to get people’s blood pressure up. While it’s good to know about your farm, some of the underlying conditions may persist or even by expected. A bright red color on the homepage creates a sense of panic which generally isn’t helpful. For my CA homepage I made a simple CSS addition via Content Editor Web Part to override the background color.
I still see the messages, but they come across less like a blaring three alarm fire and more like a gentle reminder.
The SharePoint Health Analyzer has detected some critical issues that require your attention. View these issues.
Below is the internal code for a Content Editor Web Part to apply more calm color styling.
Download .DWP Web Part
Then you can easily import to your environment.