diff --git a/src/Main.hs b/src/Main.hs
index 9587605..6c0d32c 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -55,6 +55,7 @@ convImage = Vec.map tosRGB' . Int.toVector
 corners :: [(Double, Double)]
 corners = (,) <$> [0, 1] <*> [0, 1]
 
+shapeCircumference :: [Point V2 Double] -> Double
 shapeCircumference = Data.List.sum . map D.norm . loopOffsets . fromVertices
 
 genImage' :: Image VU G.RGB Double -> StdGen -> Int -> QDiagram SVG V2 Double Any
diff --git a/src/Triangles.hs b/src/Triangles.hs
index 5b2b1c8..d7bb23b 100644
--- a/src/Triangles.hs
+++ b/src/Triangles.hs
@@ -46,9 +46,11 @@ derivingUnbox
   [|toSRGBTuple|]
   [|fromSRGBTuple|]
 
-borderSize = 0.05
+
 
 -- from -0.05 to 1.05 so there aren't missing/elongated triangles at the edges
+borderSize = 0.05
+
 randomPoints :: StdGen -> [(Double, Double)]
 randomPoints = map (bimap toZeroToOneTuple toZeroToOneTuple) . randomRs ((0 :: Word, 0 :: Word), (maxBound, maxBound))
  where
@@ -64,11 +66,12 @@ combinations xs =
     . concat
     . withStrategy (parListChunk 50 rdeepseq)
     . map (\(x : xs) -> take 15 . sortOn (abs . uncurry distanceA) . map (x,) $ xs)
-    . init
+    . init -- last output of tails is empty list
     . tails
     $ xs
  where
-  edgeLengthThreshold = 10
+
+  xsLen = length xs
 
 toPlanarGraph :: forall n. (NFData n, Floating n, Ord n) => [P2 n] -> [(Point V2 n, Point V2 n)]
 toPlanarGraph points =
@@ -122,7 +125,7 @@ voroniDiagramCorners center midpoints =
    where
     -- implicitly uses the unit vector * 8 as an infinitely long vector
     tangentVec =
-      scale 8
+      scale 2
         . fromDirection
         . rotateBy (1 / 4)
         $ dirBetween midpoint center