Need larger space before operator with the invisible-multiply package

#1

Without the invisible-multiply package, the spaces between symbols seem too large (may only be personal preference). With the package, however, the space before an operator is too small. See the example below.
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I can insert some space manually but it’s not easy to get consistency. Then I found I can edit the package and change the value from 0spc to something positive.

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image.png1660×92 9.41 KB

But the ideal setting should be smaller space between normal math symbols and larger space before an operator, as follows
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#2

I have found out from the narrow-multiply package (there are several packages that control spacing in packages/customize/spacing/, see also Controling the spacing (e.g. suppressing the space for multiplications) by @re4zuaFe) that the spacing policy can also have a tuple of values for multiply:

<tuple|multiply|<tuple|0.03125spc|0.125spc|0.125spc>>

But I do not know what each value controls; the spacing between variables and between variables and functions seems to be the same. Perhaps @jeroen or @mgubi know.

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