diff --git a/src/main/java/sc/fiji/labkit/ui/ActionsAndBehaviours.java b/src/main/java/sc/fiji/labkit/ui/ActionsAndBehaviours.java
index a69ccac8..b687c585 100644
--- a/src/main/java/sc/fiji/labkit/ui/ActionsAndBehaviours.java
+++ b/src/main/java/sc/fiji/labkit/ui/ActionsAndBehaviours.java
@@ -31,7 +31,6 @@
 
 import bdv.util.BdvHandle;
 import org.scijava.ui.behaviour.Behaviour;
-import org.scijava.ui.behaviour.InputTrigger;
 import org.scijava.ui.behaviour.io.InputTriggerConfig;
 import org.scijava.ui.behaviour.util.AbstractNamedAction;
 import org.scijava.ui.behaviour.util.Actions;
diff --git a/src/main/java/sc/fiji/labkit/ui/brush/neighborhood/RealPoints.java b/src/main/java/sc/fiji/labkit/ui/brush/neighborhood/RealPoints.java
index d6318aa8..04004a32 100644
--- a/src/main/java/sc/fiji/labkit/ui/brush/neighborhood/RealPoints.java
+++ b/src/main/java/sc/fiji/labkit/ui/brush/neighborhood/RealPoints.java
@@ -30,11 +30,6 @@
 package sc.fiji.labkit.ui.brush.neighborhood;
 
 import net.imglib2.RealLocalizable;
-import net.imglib2.RealPoint;
-import net.imglib2.realtransform.AffineTransform3D;
-
-import java.util.List;
-import java.util.stream.Collectors;
 
 public class RealPoints {
 
diff --git a/src/main/java/sc/fiji/labkit/ui/utils/DimensionUtils.java b/src/main/java/sc/fiji/labkit/ui/utils/DimensionUtils.java
index efc24b55..984a5895 100644
--- a/src/main/java/sc/fiji/labkit/ui/utils/DimensionUtils.java
+++ b/src/main/java/sc/fiji/labkit/ui/utils/DimensionUtils.java
@@ -34,7 +34,6 @@
 import net.imglib2.RandomAccessibleInterval;
 import net.imglib2.util.Intervals;
 import net.imglib2.view.Views;
-import org.apache.commons.lang3.ArrayUtils;
 
 import java.util.Arrays;
 import java.util.List;
diff --git a/src/main/java/sc/fiji/labkit/ui/utils/LabkitUtils.java b/src/main/java/sc/fiji/labkit/ui/utils/LabkitUtils.java
index f5060e99..226f5fe5 100644
--- a/src/main/java/sc/fiji/labkit/ui/utils/LabkitUtils.java
+++ b/src/main/java/sc/fiji/labkit/ui/utils/LabkitUtils.java
@@ -29,24 +29,12 @@
 
 package sc.fiji.labkit.ui.utils;
 
-import bdv.export.ProgressWriter;
-import java.util.Collections;
-import java.util.concurrent.CancellationException;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicLong;
-import java.util.function.Consumer;
-import net.imglib2.Cursor;
+
 import net.imglib2.RandomAccessible;
 import net.imglib2.RandomAccessibleInterval;
-import net.imglib2.cache.img.CachedCellImg;
 import net.imglib2.converter.Converters;
 import net.imglib2.img.Img;
 import net.imglib2.img.array.ArrayImgs;
-import net.imglib2.parallel.Parallelization;
-import net.imglib2.parallel.TaskExecutor;
-import net.imglib2.type.NativeType;
 import net.imglib2.type.numeric.ARGBType;
 import net.imglib2.type.numeric.IntegerType;
 import net.imglib2.type.numeric.NumericType;
@@ -60,12 +48,6 @@
 import net.imglib2.util.ValuePair;
 import net.imglib2.view.Views;
 
-import java.util.List;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
-import java.util.stream.Collectors;
-import java.util.stream.IntStream;
-
 /*
  * @author Matthias Arzt
  */
diff --git a/src/main/java/sc/fiji/labkit/ui/utils/progress/ProgressDialog.java b/src/main/java/sc/fiji/labkit/ui/utils/progress/ProgressDialog.java
index ce173398..200379c9 100644
--- a/src/main/java/sc/fiji/labkit/ui/utils/progress/ProgressDialog.java
+++ b/src/main/java/sc/fiji/labkit/ui/utils/progress/ProgressDialog.java
@@ -39,7 +39,6 @@
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.beans.PropertyChangeEvent;
-import java.time.Duration;
 
 /**
  * A dialog the shows a progress bar.
diff --git a/src/main/java/sc/fiji/labkit/ui/utils/sparse/IntervalIndexer2.java b/src/main/java/sc/fiji/labkit/ui/utils/sparse/IntervalIndexer2.java
index 3a212bc6..ce257537 100644
--- a/src/main/java/sc/fiji/labkit/ui/utils/sparse/IntervalIndexer2.java
+++ b/src/main/java/sc/fiji/labkit/ui/utils/sparse/IntervalIndexer2.java
@@ -34,7 +34,6 @@
 import net.imglib2.Positionable;
 import net.imglib2.util.Intervals;
 
-import java.util.stream.IntStream;
 import java.util.stream.LongStream;
 
 /**