Here's how to center transitions between clips in Premiere Pro.
Step 1:
Apply your transition between two clips on the timeline.
Step 2:
Select the transition you just applied.
Step 3:
Open the Effect Controls panel.
Step 4:
Locate the Alignment option and click the dropdown menu.
Step 5:
Change the setting from "Start at Cut" to "Center at Cut".
Your transition is now perfectly centered between the two clips, creating a smooth animation that spans equally across both sides of the edit point.