Added Math unit.

colorspeedbutton.pas

@@ -16,7 +16,7 @@ interface
 uses
   Classes, SysUtils, Types, {$IFDEF FPC}LCLType, LCLProc, LResources,{$ENDIF}
   {$IFNDEF FPC}BGRAGraphics, GraphType, FPImage, {$ENDIF}
-  Forms, Controls, Graphics, Dialogs, Buttons, BGRASpeedButton, Themes;
+  Forms, Controls, Graphics, Dialogs, Buttons, BGRASpeedButton, Themes, Math;
 
 type