Layer Styles

I am simply having a hard time figuring out what Layer Styles are all about.  Some I can use to outline  my image but others simply cover up the image and the Layer Style/Style Settings does nothing to change that situation.  So how are they supposed to be used?

Have a look at this video, Sparkle covering how to outline images in Styles.

There is another way to put an outline (stroke) around an image. Try this:

Open the image in Editor (Expert tab)

Change the foreground color chip to the desired color with the color picker, e.g. red.

Go to Select menu>all. You should see an outline ("marching ants"} surrounding the image

Open a blank layer above the  Background layer

Go to Edit menu>Stroke (outline) selection. In the dialog that opens make the width 6px and position the stroke inside,

If the width of the stroke is not suitable, adjust to suit. Since the stroke is on its own layer, you can delete the layer and replace with another blank layer

Press CTRL+D to get rid of the marching ants