Code:
# 0.172
curvature 0.10
round_corner 0.05
smooth_border 0.04
Should be nearly the same as
Code:
# 0.173
distortion 0.05 # 1/2 curvature
cubic_distortion 0.025 # 1/4 curvature
distort_corner 0.075 # distortion + cubic_distortion
round_corner 0.05 # no change
smooth_border 0.04 # no change