Description text for custom header upload may be misleading in some contexts.

[mfields]

The paragraph in the "Upload Image" section of Appearance -> Header contains the following text: "You can upload a custom header image to be shown at the top of your site instead of the default one."

This is a bit misleading in the event that the active theme does not include a default image.

An easy solution may be to remove the following text from the sentence: " instead of the default one". What do you think?

Also, note "shown at the top of your site"

Not all header images are shown at the top of your site.