Conditional Formatting Rules and the Template for OnePager Live
From OnePager Documentation
11.13.1-OPL Not Edited Beyond this Point.
You may always define a template with conditional formatting rules.
In situations where a template contains conditional formatting rules using a column that does not exist in the Microsoft Project plan, OnePager Pro (OPP) will deactivate these specific rules.
(11.13.1-OPL)