A sourceDescriptor.layerName can be "foreground" or "public.default" …

…or None. We don't want to use the foreground kerning for support layers, but we do want the kerning for foreground layers
LettError · Mar 24, 2020 · 2cf8d4e · 2cf8d4e
1 parent 062a1c2
commit 2cf8d4e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Lib/ufoProcessor/__init__.py b/Lib/ufoProcessor/__init__.py
@@ -380,9 +380,10 @@ def getKerningMutator(self, pairs=None):
         if self._kerningMutator and pairs == self._kerningMutatorPairs:
             return self._kerningMutator
         kerningItems = []
+        foregroundLayers = [None, 'foreground', 'public.default']
         if pairs is None:
             for sourceDescriptor in self.sources:
-                if sourceDescriptor.layerName is not None:
+                if sourceDescriptor.layerName not in foregroundLayers:
                     continue
                 if not sourceDescriptor.muteKerning:
                     loc = Location(sourceDescriptor.location)