When all applets are in the Center Segment (or all 3 segments have applets), the padding at the ends is equal.
When the button is moved to the Start Segment, and the End Segment is empty, there is additional padding where the End Segment would be.
When it's moved to the End Segment, and the Start Segment is empty, there is additional padding where the Start Segment would be.
The first image is when all 3 are in the Center. In the second image, the Launcher button was moved to the Start Segment.
(using a custom padding of 4)
When all applets are in the Center Segment (or all 3 segments have applets), the padding at the ends is equal. When the button is moved to the Start Segment, and the End Segment is empty, there is additional padding where the End Segment would be. When it's moved to the End Segment, and the Start Segment is empty, there is additional padding where the Start Segment would be. The first image is when all 3 are in the Center. In the second image, the Launcher button was moved to the Start Segment. (using a custom padding of 4)