Im trying to make a small paint program for a PPC in VB.NET, and i've got the freehand drawing to work. But i cant seem to change the width or color of a pen after it's declaration.

Declared like this
Public pen As Pen = New Pen(Black, 2.5)
I've tried
pen.Dispose()
pen = New Pen(drawColor, drawSize)
and something like

pen.Color = drawColor
pen.Width = drawSize

but it doesnt seem to do anything.

I also have a problem with my app not closing clean. It stays in memory after it has been closed, i have even put this in my Form_Closed sub
Me.Dispose()
drawArea.Dispose()
Application.Exit()