ui: better alignment for RadioButton text

In Intellij Light LaF checkbox and radiobutton icons have different width.
Adjust icon gap accordingly to align their label texts.

GitOrigin-RevId: efa1f1ca9f3c11da39b67a856fef90264c608291

platform/platform-impl/src/com/intellij/ide/ui/laf/darcula/ui/DarculaRadioButtonUI.java

@@ -31,7 +31,7 @@ public class DarculaRadioButtonUI extends MetalRadioButtonUI {
   @Override
   public void installDefaults(AbstractButton b) {
     super.installDefaults(b);
-    b.setIconTextGap(textIconGap());
+    b.setIconTextGap(textIconGap(b));
     updateTextPosition(b);
   }
 
@@ -47,7 +47,15 @@ public class DarculaRadioButtonUI extends MetalRadioButtonUI {
     button.removePropertyChangeListener(AbstractButton.TEXT_CHANGED_PROPERTY, textChangedListener);
   }
 
-  protected int textIconGap() {
+  protected int textIconGap(AbstractButton b) {
+    Object gap = UIManager.get("RadioButton.iconTextGap");
+    if (gap != null) {
+      try {
+        return JBUIScale.scale(Integer.parseInt(gap.toString()));
+      }
+      catch (NumberFormatException ignored) {
+      }
+    }
     return JBUIScale.scale(4);
   }
 

platform/platform-impl/src/com/intellij/ide/ui/laf/intellijlaf.properties

@@ -143,6 +143,7 @@ ComboBox.ArrowButton.disabledIconColor=ABABAB
 RadioButtonUI=com.intellij.ide.ui.laf.darcula.ui.DarculaRadioButtonUI
 RadioButton.border=com.intellij.ide.ui.laf.darcula.ui.DarculaRadioButtonBorder
 RadioButton.borderInsets=2,2,2,0
+RadioButton.iconTextGap=3
 RadioButton.darcula.selectionEnabledColor=ffffff
 RadioButton.darcula.selectionDisabledColor=aaaaaa
 RadioButton.darcula.selectionEnabledShadowColor=00000040

plugins/laf/macos/src/com/intellij/laf/macos/MacIntelliJRadioButtonUI.java

@@ -27,7 +27,7 @@ public class MacIntelliJRadioButtonUI extends DarculaRadioButtonUI {
   }
 
   @Override
-  protected int textIconGap() {
+  protected int textIconGap(AbstractButton b) {
     return JBUIScale.scale(3);
   }