How can I apply a dark-colored Inner Glow Layer Style?
By default, the Inner Glow Layer Style doesn't work with dark colors; for example, you cannot apply a black Inner Glow. Fortunately, there are two workarounds. Both will "trick" Elements into using dark colors, including black. Take your pick!
If we want to create a shadow effect around the inside edge of a photo (around all sides of it), we usually apply Inner Glow or Inner Shadow. However, both layer styles have limitations.
Inner Glow -- By default, this layer style cannot work with dark colors. Inner Shadow -- The shadow won’t apply to all sides of a photo; it will apply only to two sides.
Moto posted about this issue and discussed a way to "trick" Elements into making Inner Glow work with dark colors as well as into applying Inner Shadow to all sides of a photo. Then, at his request, I created an .asl file which does just that -- allows Inner Glow to work with dark colors and Inner Shadow to be applied to all sides of a photo (and which can be customized, including scaled).