 | OSAPercentageContentPaddingSetter |
Use this when the content padding should be a function of the viewport size, rather than a constant decided at edit-time.
In other words, use if you want to specify the padding as a percentage rather than in pixels. It also allows for fine adjustments of the first/last item, mostly useful for centering them.
A use case is keeping the last/first element in the middle when the content's extremity is reached. This can be done by setting a constant padding,
but having a percentage-specified padding allows for seamless screen size changes
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