[GRiker]

Attempting to customize the plugin yields the following error:

Traceback (most recent call last):
  File "/Users/griker/Documents/calibredev/calibre/src/calibre/gui2/preferences/plugins.py", line 260, in customize_plugin
    self.modify_plugin(op='customize')
  File "/Users/griker/Documents/calibredev/calibre/src/calibre/gui2/preferences/plugins.py", line 319, in modify_plugin
    if not plugin.is_customizable():
  File "/Users/griker/Documents/calibredev/calibre/src/calibre/customize/__init__.py", line 248, in is_customizable
    self.customization_help()
  File "<string>", line 59, in customization_help
AttributeError: 'GenerateCoverBase' object has no attribute 'customization_help'

But other than that, this is a very nice plugin.

G