Background turns blue

I set the background of my game to yellow green. Here's the code from torqueSettings.xml





However, when I'm running the game and I close the computer lid or sometimes when I change the window focus from the game to something else, the background color changes to dark blue! This also happens if I try to run the game in fullscreen mode. Why does this happen?


By the way, I tried to change the background color through code by overriding the draw method in Game.cs

protected override void Draw(GameTime gameTime)
{
base.Draw(gameTime);
this.GraphicsDeviceManager.GraphicsDevice.Clear(Color.YellowGreen);
screenManager.Draw(gameTime);
}

but if I did this, all menus and GUIs drawned by the screenManager were put behind the background! It also happens if I change the color after the screenManager.Draw... (My screenManager is a DrawableGameComponent)

Help on these two questions is appreciated :)