New Post: Dynamically change theme of PropertyGrid

I can set theme in my xaml for Avalon dock. Is it possible to do the same for the PropertyGrid?

<avalonDock:DockingManager>

<avalonDock:DockingManager.Theme>
            <darkMetro:MetroTheme/>
        </avalonDock:DockingManager.Theme>
        <avalonDock:LayoutRoot>

.........
....

Here application will always load MetroTheme, overriding default theme which depends on window. How can I achieve this for PropertyGrid,