NSStatusBar item glow without the glow image on Xcode

Question

How can i make something like this glow on a status bar item?

I know that i can do that with another png, but i have seen some other applications where they only have the black icon of the statusbar, no glow.
How can i do that?
Thanks

Answer 1

Just draw your image with a white drop shadow (some blur radius, no offset) in a custom view. NSShadow makes this very easy to do.