This article shows you the different Display settings. You can also watch Video Series: Display Settings.
When you click "Display" you will see the ability to apply text styles and adjust how the narrative will be rendered (bullets or paragraphs). You are also able to select your font size.
You are able to set the color and font style for when changes are considered 'good' and 'bad'.
The rules you set for good and bad changes are related to the Characterizations thresholds - if larger numbers are considered good or bad. These are the styles and colors that will be applied when you choose to format parts of the narrative based on thresholds of trend line or segment analysis. Note that this is only available in the continuous narrative.
Watch Video Series: Characterizations Settings to learn more about characterizations.