How to Add Vignette to Pictures in Photos for Mac OS X
You can add a nice vignette effect to any picture, image, or photo kept in the Photos app on the Mac. The vignette tool allows for adjustments and customizations for the strength of the pictures vignetting effect, which is basically a dark soft border along the edges of a picture intended to draw the viewers focus to the center of a picture. The vignette effect is easy to use, but it’s a little hidden in the OS X Photos app, buried within the adjustment settings.
We’ll show you how to add a vignette effect to any image or picture within Photos for Mac.