Tool to find wrong contour order between different masters, and other interpolatability (or lack thereof) issues.
Call as: $ fonttools varLib.interpolatable font1 font2 …
fontTools.varLib.interpolatable.
PerContourOrComponentPen
addComponent
Transform the points of the base glyph and draw it onto self.
PerContourPen
main
min_cost_perfect_bipartite_matching
test
designspace
interpolate_layout