Change the skill bar's expansion direction to behave opposite of how it does currently.
1 row visible = no change.
2 rows visible = Primary row should display on the bottom, secondary row above it.
3 rows visible = Tertiary row above the secondary row.
4 rows visible = Quaternary row above the tertiary row.
The primary row is primary for a reason, it will likely go mostly unchanged by players once they have their skill assignment customization in place. The expansion rows are more volatile by design and not intended to be as "set in stone" as the primary row. Many of these expansion row slots will also go unused (blank). Many players may also hide these expansion rows, as they will often contain skills that they don't need to directly track/manage, and can handle them via keybind memory alone. This change would allow for less screen space congestion towards the center of the screen by no longer pushing the primary row towards that center.