Remove overlap

scripts/overlaps.py

@@ -0,0 +1,28 @@
+"""
+FontForge: Remove overlapping contours
+───────────────────────────────────────
+Merges overlapping contours into clean outlines for all glyphs.
+Also corrects winding direction, which can get flipped after overlap removal.
+
+This fixes rendering issues on devices (e.g. Kobo) that struggle with
+overlapping paths, especially when applying synthetic bold/weight scaling.
+
+Run inside FontForge (or via build.py which sets `f` before running this).
+"""
+
+import fontforge
+
+f = fontforge.activeFont()
+
+# ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+# APPLY
+# ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+f.selection.all()
+
+f.removeOverlap()
+f.correctDirection()
+
+count = sum(1 for g in f.glyphs() if g.isWorthOutputting())
+print(f"  Removed overlaps and corrected direction for {count} glyphs")
+print("Done.")