title: Filling a panel as progress bar
body: <p>I have a panel on winform itch with a button, 2 labels, and an image. Now I would like to change the color of the panel background gradually from bottom to top as a progress bar. I tried with a panel with the components with the second panel on top of the first but behind the components and then gradually expand the height of the second panel. But the component's background color reminds the color of the first panel. I have tried to set the component's background color to transparent.</p>
  
  <p>Do anyone have a suggestion to achieve this effect? It doesn't have to be with panels all I want is that the components stay on top of the area and that the background color change.</p>
  
  <p>Thanks in advance </p>