Image(_Driver) class does not run closures in config.

[Altreus]

Image_Driver stores a config that is the top-level image config merged with the config array passed in. This means that \Config::get is never used on the actual config values themselves.

I added a \Fuel::value in the instance where this was causing me a problem but I wasn't sure whether it was best to do this in all instances of $this->config or to change the way the config was accessed in the first place.

[WanWizard]

I think this isn't the only place where config is copied to an internal structure, so you might encounter this issue elsewhere as well.

Quickest solution is to use Fuel::value() in the config file itself, or assign the closure and call it in the assignment. But that probably won't work if your closure requires runtime data...