diff --git a/app/build.xml b/app/build.xml
index 2fdf8afe0..ed8e6f3b2 100644
--- a/app/build.xml
+++ b/app/build.xml
@@ -1,12 +1,22 @@
 <?xml version="1.0"?>
 <project name="Processing PDE" default="build">
 
+  <property name="vaqua.url" value="https://violetlib.org/release/vaqua" />
+
   <target name="clean" description="Clean the build directories">
     <delete dir="bin" />
     <delete file="pde.jar" />
   </target>
 
-  <target name="compile" description="Compile sources">
+  <target name="download-vaqua">
+
+    <get dest="lib" usetimestamp="true">
+      <url url="${vaqua.url}/7/VAqua7.jar" />
+    </get>
+
+  </target>
+
+  <target name="compile" description="Compile sources" depends="download-vaqua">
     <condition property="core-built">
       <available file="../core/library/core.jar" />
     </condition>
@@ -39,7 +49,8 @@
                       lib/ant.jar;
                       lib/ant-launcher.jar;
                       lib/jna.jar;
-                      lib/jna-platform.jar"
+                      lib/jna-platform.jar;
+                      lib/VAqua7.jar"
 	   debug="on"
 	   nowarn="true">
       <src path="src" />
diff --git a/app/src/processing/app/Sketch.java b/app/src/processing/app/Sketch.java
index 573975f85..eac622bea 100644
--- a/app/src/processing/app/Sketch.java
+++ b/app/src/processing/app/Sketch.java
@@ -841,7 +841,10 @@ public class Sketch {
     // TODO rewrite this to use shared version from PApplet (But because that
     // specifies a callback function, this needs to wait until the refactoring)
     final String PROMPT = Language.text("save");
-    if (Preferences.getBoolean("chooser.files.native")) {
+
+    // https://github.com/processing/processing4/issues/77
+    boolean useNative = Preferences.getBoolean("chooser.files.native");
+    if (useNative) {
       // get new name for folder
       FileDialog fd = new FileDialog(editor, PROMPT, FileDialog.SAVE);
       if (isReadOnly() || isUntitled()) {
diff --git a/app/src/processing/app/platform/DefaultPlatform.java b/app/src/processing/app/platform/DefaultPlatform.java
index 97afad1fc..26711cddd 100644
--- a/app/src/processing/app/platform/DefaultPlatform.java
+++ b/app/src/processing/app/platform/DefaultPlatform.java
@@ -23,14 +23,19 @@
 
 package processing.app.platform;
 
+import java.awt.Color;
+import java.awt.Component;
 import java.awt.Desktop;
+import java.awt.Graphics;
 import java.io.File;
 import java.net.URI;
 
+import javax.swing.Icon;
 import javax.swing.UIManager;
 
 import com.sun.jna.Library;
 import com.sun.jna.Native;
+import org.violetlib.aqua.AquaLookAndFeel;
 
 import processing.app.Base;
 import processing.app.Preferences;
@@ -75,7 +80,21 @@ public class DefaultPlatform {
   public void setLookAndFeel() throws Exception {
     String laf = Preferences.get("editor.laf");
     if (laf == null || laf.length() == 0) {  // normal situation
-      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+      boolean isMac = System.getProperty("os.name", "").startsWith("Mac OS");
+      if (isMac && Preferences.getBoolean("editor.allow_vaqua")) {
+        UIManager.setLookAndFeel("org.violetlib.aqua.AquaLookAndFeel");
+
+        Icon collapse = new MacTreeIcon(true);
+        Icon open = new MacTreeIcon(false);
+        Icon leaf = new MacEmptyIcon();
+        UIManager.put("Tree.closedIcon", leaf);
+        UIManager.put("Tree.openIcon", leaf);
+        UIManager.put("Tree.collapsedIcon", open);
+        UIManager.put("Tree.expandedIcon", collapse);
+        UIManager.put("Tree.leafIcon", leaf);
+      } else {
+        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+      }
     } else {
       UIManager.setLookAndFeel(laf);
     }
@@ -188,4 +207,80 @@ public class DefaultPlatform {
     return ZOOM_DEFAULT_SIZING;
   }
 
+  /**
+   * Spacer icon for mac when using Vaqua.
+   *
+   * <p>
+   * Due to potential rendering issues, this small spacer is used to ensure that rendering is stable
+   * while using Vaqua with non-standard swing components. Without this, some sizing calculations
+   * non-standard components may fail or become unreliable.
+   * </p>
+   */
+  class MacEmptyIcon implements Icon {
+    private final int SIZE = 1;
+
+    /**
+     * Create a new single pixel spacer icon.
+     */
+    public MacEmptyIcon() {}
+
+    @Override
+    public int getIconWidth() {
+        return SIZE;
+    }
+
+    @Override
+    public int getIconHeight() {
+        return SIZE;
+    }
+
+    @Override
+    public void paintIcon(Component c, Graphics g, int x, int y) {}
+  }
+
+  /**
+   * Replacement tree icon for mac when using Vaqua.
+   *
+   * <p>
+   * Due to potential rendering issues with the regular tree icon set, this replacement tree icon
+   * for mac ensures stable rendering when using Vaqua with non-standard swing components. Without
+   * this, some sizing calculations within non-standard components may fail or become unreliable.
+   * </p>
+   */
+  private class MacTreeIcon implements Icon {
+    private final int SIZE = 12;
+    private final boolean isOpen;
+
+    /**
+     * Create a new tree icon.
+     *
+     * @param newIsOpen Flag indicating if the icon should be in the open or closed state at
+     *    construction. True if open false otherwise.
+     */
+    public MacTreeIcon(boolean newIsOpen) {
+      isOpen = newIsOpen;
+    }
+
+    @Override
+    public int getIconWidth() {
+        return SIZE;
+    }
+
+    @Override
+    public int getIconHeight() {
+        return SIZE;
+    }
+
+    @Override
+    public void paintIcon(Component c, Graphics g, int x, int y) {
+      g.setColor(Color.GRAY);
+
+      g.drawLine(x + SIZE / 2 - 3, y + SIZE / 2, x + SIZE / 2 + 3, y + SIZE / 2);
+
+      if (!isOpen) {
+        g.drawLine(x + SIZE / 2, y + SIZE / 2 - 3, x + SIZE / 2, y + SIZE / 2 + 3);
+      }
+    }
+  }
+
 }
diff --git a/app/src/processing/app/ui/EditorConsole.java b/app/src/processing/app/ui/EditorConsole.java
index 186e692b9..ecdd6e897 100644
--- a/app/src/processing/app/ui/EditorConsole.java
+++ b/app/src/processing/app/ui/EditorConsole.java
@@ -188,7 +188,8 @@ public class EditorConsole extends JScrollPane {
     StyleConstants.setBold(errStyle, font.isBold());
     StyleConstants.setItalic(errStyle, font.isItalic());
 
-    if (UIManager.getLookAndFeel().getID().equals("Nimbus")) {
+    String lookAndFeel = UIManager.getLookAndFeel().getID();
+    if (lookAndFeel.equals("Nimbus") || lookAndFeel.equals("VAqua")) {
       getViewport().setBackground(bgColor);
       consoleTextPane.setOpaque(false);
       consoleTextPane.setBackground(new Color(0, 0, 0, 0));
diff --git a/build/build.xml b/build/build.xml
index 2f6a67109..8984edcd0 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -426,6 +426,7 @@
     <include name="app/lib/jna-platform.jar" />
     <include name="app/lib/ant.jar" />
     <include name="app/lib/ant-launcher.jar" />
+    <include name="app/lib/VAqua7.jar" />
   </fileset>
 
   <target name="build" description="Build Processing.">
@@ -706,7 +707,8 @@
                copyright="© The Processing Foundation"
                shortVersion="${version}"
                version="${revision}"
-               mainClassName="processing.app.BaseSplash">
+               mainClassName="processing.app.BaseSplash"
+               minimumSystemVersion="10.10.0">
 
       <!-- The appbundler task needs a couple files (the Info.plist and
            anything else outside /jdk) from the full JDK, even though
@@ -723,6 +725,7 @@
       <classpath file="../app/lib/jna-platform.jar" />
       <classpath file="../app/lib/ant.jar" />
       <classpath file="../app/lib/ant-launcher.jar" />
+      <classpath file="../app/lib/VAqua7.jar" />
 
       <!-- plus core.jar... note that this is no longer shared -->
       <classpath file="../core/library/core.jar" />
diff --git a/build/shared/lib/defaults.txt b/build/shared/lib/defaults.txt
index 843f706ef..0de02205d 100644
--- a/build/shared/lib/defaults.txt
+++ b/build/shared/lib/defaults.txt
@@ -74,6 +74,7 @@ recent.count = 10
 
 # Default to the native (AWT) file selector where possible
 chooser.files.native = true
+chooser.files.native.macosx = false # except on mac where it's broken
 
 
 # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@@ -167,6 +168,9 @@ editor.watcher.debug = false
 # The window of time (in milliseconds) in which a change won't be counted
 editor.watcher.window = 1500
 
+# allow vaqua on mac
+editor.allow_vaqua = true
+
 # Format and search engine to use for online queries
 search.format = https://google.com/search?q=%s
 
diff --git a/java/application/Info.plist.tmpl b/java/application/Info.plist.tmpl
index 1fbe13859..1cd85f07b 100644
--- a/java/application/Info.plist.tmpl
+++ b/java/application/Info.plist.tmpl
@@ -38,7 +38,7 @@
     <string>@@sketch@@</string>
 
     <key>LSMinimumSystemVersion</key>
-    <string>10.8.5</string>
+    <string>10.10.0</string>
 
     <key>NSHighResolutionCapable</key>
     <true/>
@@ -61,7 +61,7 @@
     <array>
 @@jvm_options_list@@
       <string>-Xdock:icon=$APP_ROOT/Contents/Resources/sketch.icns</string>
-      <string>-Djava.library.path=$APP_ROOT/Contents/Java</string>   
+      <string>-Djava.library.path=$APP_ROOT/Contents/Java</string>
       <string>-Dapple.laf.useScreenMenuBar=true</string>
       <string>-Dcom.apple.macos.use-file-dialog-packages=true</string>
       <string>-Dcom.apple.macos.useScreenMenuBar=true</string>
diff --git a/java/build.xml b/java/build.xml
index ff397d21e..36bf9b824 100644
--- a/java/build.xml
+++ b/java/build.xml
@@ -54,6 +54,7 @@
     <pathelement location="../app/lib/apple.jar" />
     <pathelement location="../app/lib/jna.jar" />
     <pathelement location="../app/lib/jna-platform.jar" />
+    <pathelement location="../app/lib/VAqua7.jar" />
 
     <pathelement location="mode/antlr-4.7.2-complete.jar" />
     <pathelement location="mode/classpath-explorer-1.0.jar" />
diff --git a/java/src/processing/mode/java/debug/VariableInspector.java b/java/src/processing/mode/java/debug/VariableInspector.java
index 7b1227150..682d7e8c5 100644
--- a/java/src/processing/mode/java/debug/VariableInspector.java
+++ b/java/src/processing/mode/java/debug/VariableInspector.java
@@ -610,7 +610,7 @@ public class VariableInspector extends JDialog {
     @Override
     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
       Component c = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
-      setForeground(tree.isEnabled() ? Color.BLACK : Color.GRAY);
+      //setForeground(tree.isEnabled() ? Color.BLACK : Color.GRAY);
 
       if (value instanceof VariableNode) {
         VariableNode var = (VariableNode) value;