Index: ufileviewnotebook.pas
===================================================================
--- ufileviewnotebook.pas	(wersja 4850)
+++ ufileviewnotebook.pas	(kopia robocza)
@@ -154,6 +154,7 @@
 implementation
 
 uses
+  Graphics,
   LCLIntf,
   LCLProc,
   DCStrUtils,
@@ -193,6 +194,7 @@
   FSettingCaption := False;
   {$ENDIF}
   inherited Create(TheOwner);
+  Color := clYellow;
 end;
 
 {$IF DEFINED(LCLQT) and (LCL_FULLVERSION < 093100)}
@@ -369,7 +371,7 @@
   PageClass := TFileViewPage;
   inherited Create(ParentControl);
   ControlStyle := ControlStyle + [csNoFocus];
-
+  Color := clRed;
   Parent := ParentControl;
   TabStop := False;
 
Index: fmain.pas
===================================================================
--- fmain.pas	(wersja 4850)
+++ fmain.pas	(kopia robocza)
@@ -784,6 +784,9 @@
 
   nbLeft := CreateNotebook(pnlLeft, fpLeft);
   nbRight := CreateNotebook(pnlRight, fpRight);
+  pnlLeft.Color := clLime;
+  pnlNotebooks.Color := clBlue;
+  Self.Color := clPurple;
 
   FDrivesListPopup := TDrivesListPopup.Create(Self, Self);
   FDrivesListPopup.OnDriveSelected := @DriveListDriveSelected;