I created a new blueprint class and set its parent to BP_DoomGlow. I then dragged that into my screen. This is a starting point:
I want to have a blue glow, so I tried setting the glow color and fill color to blue:
Now, the glow is translucent and less intense. It seems related to the fill color. The farther that is from the center of the color wheel, the more translucent the glow becomes:
Is there a way to fix that so the opacity does not change with the color?