Feature Request: Image Module “Darken” Mouse-Over Effect

Greetings,

I was wondering if the ‘image module’ could be modified to include a ‘Mouse over effect’ which darkens the image 50% or so. My reason for asking is that this effect is quite standard in web design, and NPB supporting this option would add continuity for those who are using multiple image-related plugins one their sites (like myself 😉).

Regardless, thank you as always for the continued awesomeness of this plugin!

~ Billy