There is this paragraph in the book called .
Motivated reasoning is a state of mind in which we find ourselves willing (perhaps at an unconscious level) to shade our beliefs in light of our opinions; confirmation bias is the mechanism by which we may try to accomplish this, by interpreting information so that it confirms our preexisting beliefs.
In this context, what is the meaning of the verb "shade?" The following sentence implies that the expression "to shade our beliefs" may contain a similar meaning to the one that says "[to confirm] our preexisitng beliefs." Am I getting this right?