The “variable” code is not included in the temp font. In this case, you could remove the “#ifdef Variable” … and remove the feature in all static instances. But that is not a good general solution. I don’t think that I can add the variable substitutions in the compositor font. One solution could be ...

When you use a PUA code, the category and subcategory are set to "Private Use" and "None". if you then change the name or some other settings, the PUA code and category sticks around as that is what most people would expect. It should go back to default when the PUA code is remov...

Can you try this in 3.1.2? That was released before you got it to work. And in it, I get the same results for your script in 3.1 and the latest 3.2. And if I look at the code, I can’t see why it should?

can you try `Layer.hasAlignedWidth()`

What distinction do you base on that property?

What version of Glyphs do you use?

Exporting the font as is, is not only a performance problem in Glyphs but there is no way to fit 15.000.000 kerning pairs into one OpenType font. The format doesn’t allow it. So it needs some preprocessing. Meaning removing all glyphs and kerning pairs that you don’t need. Then the export should wor...

@brianbrubaker
to get the xHeight shown everywhere, please add an extra metric with the same value and set it to undefined and call it x-Height (mate filter it to not show up in lowercase letters). But don't add filters to all the other metrics. That will mess up a lot.