diff --git a/src/app/MetaBrush/Application/Action.hs b/src/app/MetaBrush/Application/Action.hs
index a84b44c..741a00c 100644
--- a/src/app/MetaBrush/Application/Action.hs
+++ b/src/app/MetaBrush/Application/Action.hs
@@ -825,9 +825,9 @@ instance HandleAction MouseMove where
                     case applyBrushWidgetAction ( pressingControl modifiers ) pos ( Just brushAction ) doc of
                       Nothing ->
                         pure Don'tModifyDoc
-                      Just ( newDocument, _ ) -> do
+                      Just ( newDocument, brushAction' ) -> do
+                        STM.writeTVar mouseHoldTVar ( Just $ BrushWidgetAction pos brushAction' )
                         -- This is just for preview, so TrivialDiff.
-                        STM.writeTVar mouseHoldTVar ( Just $ BrushWidgetAction pos brushAction )
                         pure ( UpdateDoc $ UpdateDocumentTo newDocument TrivialDiff )
                   _ -> pure Don'tModifyDoc
           | otherwise
diff --git a/src/app/MetaBrush/Render/Document.hs b/src/app/MetaBrush/Render/Document.hs
index ed3ae18..59114c7 100644
--- a/src/app/MetaBrush/Render/Document.hs
+++ b/src/app/MetaBrush/Render/Document.hs
@@ -110,8 +110,6 @@ import MetaBrush.Unique
 import MetaBrush.GTK.Util
   ( withRGBA )
 
-import Debug.Trace
-
 --------------------------------------------------------------------------------
 
 data Renders a
diff --git a/src/metabrushes/MetaBrush/Draw.hs b/src/metabrushes/MetaBrush/Draw.hs
index f8f947d..b2ab83c 100644
--- a/src/metabrushes/MetaBrush/Draw.hs
+++ b/src/metabrushes/MetaBrush/Draw.hs
@@ -70,8 +70,6 @@ import MetaBrush.Stroke
 import MetaBrush.Unique
   ( Unique, UniqueSupply, freshUnique )
 
-import Debug.Trace
-
 --------------------------------------------------------------------------------
 
 -- | A draw anchor, to continue drawing from one end of an existing stroke.
@@ -209,12 +207,10 @@ anchorPos ( DrawAnchor { anchorStroke, anchorIsAtEnd } )
     case Map.lookup anchorStroke strokes of
       Nothing -> error "draw anchor: stroke not present in hierarchy"
       Just ( Stroke { strokeSpline } ) ->
-        let res =
-              coords $
-                if anchorIsAtEnd
-                then splineEnd   ( adjustSplineType @Open strokeSpline )
-                else splineStart ( adjustSplineType @Open strokeSpline )
-        in trace ("anchorPos: " ++ show res) res
+        coords $
+          if anchorIsAtEnd
+          then splineEnd   ( adjustSplineType @Open strokeSpline )
+          else splineStart ( adjustSplineType @Open strokeSpline )
 
 addToAnchor :: DrawAnchor -> Spline Open () ( PointData () ) -> Document -> Document
 addToAnchor anchor newSpline doc@( Document { documentMetadata, documentContent = oldContent } ) =