4.46.0

- [featureVars] Allow to register the same set of substitution rules to multiple features.
  The ``addFeatureVariations`` function can now take a list of featureTags; similarly, the
  lib key 'com.github.fonttools.varLib.featureVarsFeatureTag' can now take a
  comma-separateed string of feature tags (e.g. "salt,ss01") instead of a single tag (#3360).
- [featureVars] Don't overwrite GSUB FeatureVariations, but append new records to it
  for features which are not already there. But raise ``VarLibError`` if the feature tag
  already has feature variations associated with it (#3363).
- [varLib] Added ``addGSUBFeatureVariations`` function to add GSUB Feature Variations
  to an existing variable font from rules defined in a DesignSpace document (#3362).
- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,
  a new test for "underweight" glyphs. The new test reports quite a few false-positives
  though. Please send feedback.
Release 4.46.0
4 files changed