You can format the status badges via the dedicated DataVista flow card:
Whenever the temperature changes, I check (via the standard Logic cards) based on certain thresholds (<18,5, between 18,5 and 22,5, and > 22,5 Celsius), in which of the three categories the temperature falls. Next, for each category I use the said status badge flow card to format the badge. Including the colors you see in the screenshot.
The screenshot is in Dutch, but hopefully you can make sense of it using my explanation.
