What problem does this address?

This came up as part of the ninth call for testing with the FSE Outreach Program:

When adjusting the padding, the preview doesn’t show any changes, until the user clicks out of that box or press enter key. I guess this is a feature. But when the user changes the value to null(ie. Empty box), without pressing enter and clicks out of the box, the value automatically sets to the previously saved value and not 0.

Essentially, unless you're dragging up and down to change values, changing the value doesn't show a change in the editor. Tied to this, if one empties the value, it resets to the prior one (bug or feature?). Here's a quick video:

What is your proposed solution?

When manually entering a value, have the changes be reflected in the editing experience. cc @aaronrobertshaw @jasmussen for thoughts since I can see you all are working on this!