This is a very useful backdrop for any scene or animation. It gives a nice smooth colour. Just paint it the colour you want and it gives you a background that isn't just one block colour. Third image is what it looks like.
%%*The native file format is Blender, it's just that the site was not allowing me to say that the native file was Blender so it thinks the dae file is from blender and the blender file is from dae but that is untrue, they are both from blender.*%%
*This is my first upload and comments would be helpful. Sorry that the categories are not relevant but I could not find a category suitable.*