I created a resource that contains a visual brush. the items in this brush are a grid (width set to auto), and some other elements. the grid backcolor is black, and I have some other rectangles within the grid.

When I set the chart.background to the resource of the visual brush, the image appears, but there are white gaps to the left and right of the chart. I am trying to find the correct combination, but it is frustrating right now.

What would be the guidelines on creating a visual brush so that the chart background is completely covered by the visual brush? The chart I am creating will vary in size as well, so I wanted something that is similar to the docking option in VB where it resizes automatically to the background border.

Thank you so much for any advise.