RootPane: Combine all border keys into one

They were all the same anyway.

core/src/main/java/com/github/weisj/darklaf/ui/rootpane/DarkRootPaneUI.java

@@ -45,10 +45,7 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
     public static final String KEY_NO_DECORATIONS = KEY_PREFIX + "noDecorations";
     public static final String KEY_UNIFIED_MENUBAR = KEY_PREFIX + "unifiedMenuBar";
     public static final String KEY_COLORED_TITLE_BAR = KEY_PREFIX + "coloredTitleBar";
-    protected static final String[] borderKeys = new String[] {"RootPane.border", "RootPane.frameBorder",
-            "RootPane.plainDialogBorder", "RootPane.informationDialogBorder", "RootPane.errorDialogBorder",
-            "RootPane.colorChooserDialogBorder", "RootPane.fileChooserDialogBorder",
-            "RootPane.questionDialogBorder", "RootPane.warningDialogBorder"};
+    protected static final String[] borderKeys = new String[] {"RootPane.border", "RootPane.frameBorder"};
 
     private Window window;
     private CustomTitlePane titlePane;
@@ -82,7 +79,7 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
 
     protected void installBorder(final JRootPane root) {
         if (root == null) return;
-        LookAndFeel.installBorder(root, borderKeys[windowDecorationsStyle]);
+        LookAndFeel.installBorder(root, borderKeys[Math.min(1, windowDecorationsStyle)]);
     }
 
     @Override

core/src/main/resources/com/github/weisj/darklaf/ui/rootPane.properties

@@ -1,6 +1,6 @@
 # MIT License
 #
-# Copyright (c) 2019-2021 Jannis Weis
+# Copyright (c) 2019-2022 Jannis Weis
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -28,10 +28,3 @@ RootPane.borderInsets             = 0,0,0,0
 RootPane.borderColor              = %border
 RootPane.border                   = com.github.weisj.darklaf.ui.rootpane.PlainRootPaneBorder
 RootPane.frameBorder              = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.informationDialogBorder  = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.plainDialogBorder        = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.warningDialogBorder      = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.colorChooserDialogBorder = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.fileChooserDialogBorder  = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.questionDialogBorder     = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder
-RootPane.errorDialogBorder        = com.github.weisj.darklaf.ui.rootpane.DarkRootPaneBorder