[NTG-context] LMTX generates PDFs with non-working fonts on real printers

[Hans Hagen]

On 10/5/2022 6:02 PM, Pablo Rodriguez via ntg-context wrote:

> It happens both with LuaMetaTeX and LuaTeX. When playing with certain
> levels of zooming, some blank spots are displayed inside the characters
> (printing is fine).

Such artifacts can result from operating in the extremes and one has to 
keep in mind that maybe not all variables fonts have all characters 
tested for these extremes. Actually even regular fonts can have such 
effects like small bumps (we saw some in math fonts) and these also show 
up in font editors. But normally we don't see these at small sizes. Some 
has to do with 'sloppy or difficult or challenging' designs, some with 
(eo)fill side effects not much different from what mp graphics can do 
with envelopes (we've written about that). I'd not loose sleep over this.
  Hans


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