How to interpret snowflake icon when preconditioning battery?

I finally got the update for my 2022 Kia EV6 Wind RWD to let the battery precondition, and I'm not exactly sure how to interpret the icon for preconditioning. For me, it's a snowflake with a status bar underneath it.

Is the status bar supposed to fill as the battery is closest to its temperature goal? Or does it represent it being cold and the blue bar will decrease as it gets warmer?