The red and green dots next to the bid/ask prices indicate upward (green) or downward (red) price movement.
If you would prefer the numbers themselves be colored instead of the dot indicators:
- Click on the Edit menu option and select Global Configuration
- On the left side, expand the Display section by clicking the black plus sign (+) to the left of the word Display, and then click Ticker Row
- In the Ticker Row Settings section, uncheck the box that says "Display tick-dots instead of colored prices"
- Once finished, click Apply and OK.