Modification of the layout background color should be done through the layout script

I have access to two distinct Galaxy Style Libraries in one galaxy and would like to call with single button: light and dark. I aim to modify the layout's background color using a layout script. Currently color changes works only for Apps but not for layout as shown below for TitleBarControl:

dim clr as System.Windows.Media.Brush;

if MyViewApp.Style.CurrentStyle == "Dark_Style" then

clr = System.Windows.Media.BrushConverter().ConvertFromString("#3DCD58");

MyContent.UOCDC_TitleBarControl1.Background = clr;

elseif MyViewApp.Style.CurrentStyle == "Light_Style" then

clr = System.Windows.Media.BrushConverter().ConvertFromString("#3DCD58");

MyContent.UOCDC_TitleBarControl1.Background = clr;

endif;

Now if I would like to change color for layout appearance background this script doesn’t works. I tried it like this

dim clr as System.Windows.Media.Brush;

if MyViewApp.Style.CurrentStyle == "Dark_Style" then

clr = System.Windows.Media.BrushConverter().ConvertFromString("#FF10181A");

Me.Background = clr;

elseif MyViewApp.Style.CurrentStyle == "Light_Style" then

clr = System.Windows.Media.BrushConverter().ConvertFromString("#C1C1C1");

Me.Background = clr;

endif;

We are considering the idea of scripting at the layout level to embed all the graphics. This approach is aimed at reducing development hours. Currently, we are scripting at the graphics level or using rectangles with specific background colors in light and dark themes. Our goal is to minimize the use of background in graphics. We aim to enable automatic background color changes from the layout itself, which is why we need the script to work at the layout level.