I've noticed a difference between the OHLC color coding on Fidelity.com charts vs. WL. It looks like on Fidelity.com, the color coding of Red/Green is based on previous day close, whereas on WL its the Open/Close of the trading day. Is this correct? If so, is there an option to change the color based on previous day's close, and not current day's Open/Close?

Yes, this is correct. You can read on definitions of Up and Down bar in the Wealth-Lab User Guide > Preferences > Chart Colors and Styles.

You cannot change the way Wealth-Lab does the bar coloring in general. However, there are two workarounds:

1. The Thick OHLC Bars ChartStyle from the Community ChartStyles extension has a close-to-close coloring option in its Chart Style Settings (right click the chart or Ctrl-Y). Applies to this chart style only.
2. If you wish to apply the same change to other chart styles e.g. Candlesticks, write a simple script that uses SetBarColor accordingly in the loop. It can be made the default strategy: the template code and save it by clicking Edit > Set as Default Template Code.

Thanks, Eugene. Very helpful.

I tried to download the extension, but I get a "You do not have permissions" error.

Please create a support ticket to verify your WLP entitlement. Thanks in advance.