I have a bunch of social media icons that are in color that I'd like to make grayscale. I've opened them all in Photoshop and am applying a black and white adjustment layer to each one. The problem is each icon has a different underlying hue so I'm getting different shades of gray in the icons. Is there an easy way to tell the black and white adjustment layer that I want the resulting gray hue to be a specific color (e.g. #666) so all icons match or do I have to just futz with the adjustment layer settings to match each one by sight so the grays all look the same?
Thanks in advance for your help.