I downloaded the diana-holga2 plugin for gimp using synaptic manager. After restarting I searched through gimp's filters & haven't been able to locate the plugin. Does anyone what the problem is, or where I should be looking?
If the plug-in is properly registered, you should be able to search for it using GIMP's "Help->Plug-in Browser". The results of your search will include the menu location.
If the plug-in is properly