What problem does this feature solve?

I'd like to align ending axis labels with the boundary, but the boundaryGap not suitable for category axis chart.
I suggest extend boundaryGap api,passed a fixed value to describe onBand margin.
Such as [10,20] means, 10px for left margin, 20px for right margin.
What does the proposed API look like?
I suggest extend boundaryGap api,and pass absolute value to describe onBand margin.
Such as [10,20] means, 10px for left margin, 20px for right margin
What problem does this feature solve?
I'd like to align ending axis labels with the boundary, but the boundaryGap not suitable for category axis chart.
I suggest extend boundaryGap api,passed a fixed value to describe onBand margin.
Such as
[10,20]means, 10px for left margin, 20px for right margin.What does the proposed API look like?
I suggest extend boundaryGap api,and pass absolute value to describe onBand margin.
Such as
[10,20]means, 10px for left margin, 20px for right margin