I was wondering what is the reason for the current range in Transformation/Background.
Why the extra -20 and +20.

sometimes you like to test a small extrapolation…

Oh, that is cool. I thought that there was something I was missing apart from experimentation (e.g. to facilitate the creation of sc,sups,etc.)

It’s worth noting that the field box accepts percentages well beyond what the slider offers (by typing or arrowing up and down), which I have found very useful.

It turns out that there was something I was missing after all. This is awesome, eliason. Thanks.

Sometimes its not perfect and you need to get that perfection so this option there I guess.