cleanup: remove unused imports and vars

app/src/processing/app/platform/DefaultPlatform.java

@@ -25,11 +25,8 @@ package processing.app.platform;
 
 import java.awt.Desktop;
 import java.awt.Font;
-import java.awt.font.TextAttribute;
 import java.io.File;
 import java.net.URI;
-import java.util.HashMap;
-import java.util.Map;
 
 import javax.swing.UIManager;
 import javax.swing.plaf.FontUIResource;

app/src/processing/app/syntax/PdeTextArea.java

@@ -27,7 +27,6 @@ import java.awt.event.MouseMotionAdapter;
 import java.util.HashMap;
 import java.util.Map;
 
-import processing.app.Mode;
 import processing.app.ui.Editor;
 import processing.app.ui.Theme;
 
@@ -62,7 +61,6 @@ public class PdeTextArea extends JEditTextArea {
     add(CENTER, painter);
 
     // load settings from theme.txt
-    Mode mode = editor.getMode();
     gutterGradient = Theme.makeGradient("editor", Editor.LEFT_GUTTER, 500);
   }
 

app/src/processing/app/ui/EditorFooter.java

@@ -161,8 +161,6 @@ public class EditorFooter extends Box {
 
 
   public void updateMode() {
-    Mode mode = editor.getMode();
-
     textColor[SELECTED] = Theme.getColor("footer.text.selected.color");
     textColor[UNSELECTED] = Theme.getColor("footer.text.unselected.color");
     font = Theme.getFont("footer.text.font");

app/src/processing/app/ui/EditorHeader.java

@@ -33,7 +33,6 @@ import javax.swing.*;
 
 import processing.app.Language;
 import processing.app.Messages;
-import processing.app.Mode;
 import processing.app.Platform;
 import processing.app.Sketch;
 import processing.app.SketchCode;

app/src/processing/app/ui/MarkerColumn.java

@@ -34,7 +34,6 @@ import java.util.stream.Collectors;
 
 import javax.swing.JPanel;
 
-import processing.app.Mode;
 import processing.app.Problem;
 import processing.app.Sketch;
 import processing.app.SketchCode;

app/src/processing/app/ui/ZoomTreeCellRenderer.java

@@ -28,8 +28,6 @@ import java.util.Optional;
 import javax.swing.JTree;
 import javax.swing.tree.DefaultTreeCellRenderer;
 
-import processing.app.Mode;
-
 
 public class ZoomTreeCellRenderer extends DefaultTreeCellRenderer {