Freestyle Background color not white? I'm following this tutorial and I've set my compositor up in the exact same way as he did, except my background is like a slightly light grey and I don't know why.  In his video's he's getting a bright white as his background and I can't see where I'm going wrong.

Here's the render:


Here's the compositor window:


Here's the blender project file.

Please help! I really want to know why it's not happening.
This is due to the filmic color management option. If you switch back the view transform to default, you get full white as background.

Filmic allows values higher than 1.0, so 1.0 is not displayed (and exported) as full white.

Another way is to crank up lighting or emission values, to reach about 16, which is where filmic outputs pure white.