diff --git a/params/shape-width.toml b/params/shape-width.toml
index 6decb131f..3dff75091 100644
--- a/params/shape-width.toml
+++ b/params/shape-width.toml
@@ -1,102 +1,109 @@
 [shapeWidth.blend.500]
-width        = 500
+width           = 500
 [shapeWidth.multiplies.blend.500]
-contrast     = 1
-stroke       = 1
-sb           = 1
-jut          = 1
-refJut       = 1
-longjut      = 1
-rhook        = 1
-rbalance     = 1
-tbalance     = 1
+contrast        = 1
+stroke          = 1
+sb              = 1
+jut             = 1
+refJut          = 1
+longjut         = 1
+rhook           = 1
+rbalance        = 1
+tbalance        = 1
+archDepth       = 1
 smallArchDepth  = 1
 
 # "Grade 9"
 [shapeWidth.blend.720]
-width        = 720
+width           = 720
 [shapeWidth.multiplies.blend.720]
-contrast     = 1.044
-stroke       = 1.103 # Make strokes a little thicker
-sb           = 1.891
-jut          = 1.323
-refJut       = 1.323
-longjut      = 1.323
-rhook        = 1.323
-rbalance     = 1.236
-tbalance     = 1.210
+contrast        = 1.044
+stroke          = 1.103 # Make strokes a little thicker
+sb              = 1.891
+jut             = 1.323
+refJut          = 1.323
+longjut         = 1.323
+rhook           = 1.323
+rbalance        = 1.236
+tbalance        = 1.210
+archDepth       = 1.103
 smallArchDepth  = 1.103
 
 # "Grade 8"
 [shapeWidth.blend.657]
-width        = 657
+width           = 657
 [shapeWidth.multiplies.blend.657]
-stroke       = 1.075 # Make strokes a little thicker
-sb           = 1.612
-jut          = 1.233
-refJut       = 1.233
-longjut      = 1.233
-rhook        = 1.233
-rbalance     = 1.236
-tbalance     = 1.154
+stroke          = 1.075 # Make strokes a little thicker
+sb              = 1.612
+jut             = 1.233
+refJut          = 1.233
+longjut         = 1.233
+rhook           = 1.233
+rbalance        = 1.236
+tbalance        = 1.154
+archDepth       = 1.075
 smallArchDepth  = 1.075
 
 # "Grade 7"
 [shapeWidth.blend.600]
-width        = 600
+width           = 600
 [shapeWidth.multiplies.blend.600]
-stroke       = 1.050 # Make strokes a little thicker
-sb           = 1.375
-jut          = 1.150
-refJut       = 1.150
-longjut      = 1.150
-rhook        = 1.150
-rbalance     = 1.152
-tbalance     = 1.100
+stroke          = 1.050 # Make strokes a little thicker
+sb              = 1.375
+jut             = 1.150
+refJut          = 1.150
+longjut         = 1.150
+rhook           = 1.150
+rbalance        = 1.152
+tbalance        = 1.100
+archDepth       = 1.050
 smallArchDepth  = 1.050
 
 # "Grade 6"
 [shapeWidth.blend.547]
-width        = 547
+width           = 547
 [shapeWidth.multiplies.blend.547]
-stroke       = 1.023 # Make strokes a little thicker
-sb           = 1.173
-jut          = 1.072
-refJut       = 1.072
-longjut      = 1.072
-rhook        = 1.072
-rbalance     = 1.074
-tbalance     = 1.049
+stroke          = 1.023 # Make strokes a little thicker
+sb              = 1.173
+jut             = 1.072
+refJut          = 1.072
+longjut         = 1.072
+rhook           = 1.072
+rbalance        = 1.074
+tbalance        = 1.049
+archDepth       = 1.023
 smallArchDepth  = 1.023
 
 # "Grade 4"
 [shapeWidth.blend.456]
-width        = 456
+width           = 456
 [shapeWidth.multiplies.blend.456]
-contrast     = 1
-stroke       = 0.976
-sb           = 0.791
-jut          = 0.961
-refJut       = 0.961
-longjut      = 0.961
-rhook        = 1
-rbalance     = 0.931
-tbalance     = 0.953
+contrast        = 1
+stroke          = 0.976
+sb              = 0.791
+jut             = 0.961
+refJut          = 0.961
+longjut         = 0.961
+rhook           = 1
+rbalance        = 0.931
+tbalance        = 0.953
+archDepth       = 0.975
 smallArchDepth  = 0.975
 
 # "Grade 3"
 [shapeWidth.blend.416]
-width        = 416
+width           = 416
 [shapeWidth.multiplies.blend.416]
-contrast     = 1
-stroke       = 0.952
-sb           = 0.625
-jut          = 0.925
-refJut       = 0.925
-longjut      = 0.925
-rhook        = 1
-rbalance     = 0.868
-tbalance     = 0.909
+contrast        = 1
+stroke          = 0.952
+sb              = 0.625
+jut             = 0.925
+refJut          = 0.925
+longjut         = 0.925
+rhook           = 1
+rbalance        = 0.868
+tbalance        = 0.909
+archDepth       = 0.952
 smallArchDepth  = 0.952
 
 # Slab correlation