What does the Content Build Action in Visual Studio do? It does not look like it's doing anything.
The File Properties article on MSDN (does not exist anymore) says:
Content - The file is not compiled, but is included in the Content output group. For example, this setting is the default value for an .htm or other kind of Web file.
But I have no idea what the "Content output group" means.
Is this something about deployment? Meaning, the action has no actual effect, when building, but only later when deploying?