02-05-2022, 09:10 AM 
	
	
	
		What type of image? It color indexed?
By the way a much cleaner way (can also produce sharp angles, unlike the "Grow selection" method
	
	
	
By the way a much cleaner way (can also produce sharp angles, unlike the "Grow selection" method
- Layer > Text to path
 - Add new layer 
 - Edit > Stroke path (Line mode, width=6px, you may want to reduce the "Miter limit" to 5 or less)
 - Drag layer below
 
Otherwise there is also this script that automates this.
	
