Another option Create New Layer. Make a Selection (if needed). Create Work Path (if needed) Select Path. Fill Path (w/ White or Black). Right Click Filled Layer Select: Blending Options Under > General Blending (Bottom Option) Blend If: Grey • 'This Layer' Move White Slider to Left or Right Slider Right to remove previous fill of White or Black Check: Stroke > Size: whatever you want. Position: INSIDE *If you make is into an action can be pretty quick. Also remains editable via Transform Tool/Option ... View more

Another option Create New Layer. Make a Selection (if needed). Create Work Path (if needed) Select Path. Fill Path (w/ White or Black). Right Click Filled Layer Select: Blending Options Under > General Blending (Bottom Option) Blend If: Grey • 'This Layer' Move White Slider to Left or Right Slider Right to remove previous fill of White or Black Check: Stroke > Size: whatever you want. Position: INSIDE *If you make is into an action can be pretty quick. Also remains editable via Transform Tool/Option ... View more