object Form1: TForm1 Left = 290 Height = 240 Top = 175 Width = 320 Caption = 'Form1' ClientHeight = 240 ClientWidth = 320 LCLVersion = '0.9.29' object Panel1: TPanel Left = 109 Height = 50 Top = 75 Width = 170 BevelOuter = bvNone BorderStyle = bsSingle Caption = 'Panel1' TabOrder = 0 endend
TBevelWidth = 1..Maxint;
TBevelWidth = 0..Maxint;
You see the border - not a bevel.
then remove border and try to use outer bevel with some style.