• [removeOverlaps] Added new module and removeOverlaps function that merges overlapping contours and components in TrueType glyphs. It requires the skia-pathops module. Note that removing overlaps invalidates the TrueType hinting (#2068).
• [varLib.instancer] Added --remove-overlaps command-line option.
  The overlap option in instantiateVariableFont now takes an OverlapMode enum: 0: KEEP_AND_DONT_SET_FLAGS, 1: KEEP_AND_SET_FLAGS (default), and 2: REMOVE. The latter is equivalent to calling removeOverlaps on the generated static
  instance. The option continues to accept bool value for backward compatibility.