The glowing stars are actually a very simple effect. Most "dots" are created by having an "empty transform," which is a transform without any variations. This causes the IFS to hit a point twice in a row, which is why you see the dots. This is a strong effect, and likely needs to be at a low weight to counteract that strength. You can convert these into blobs using a blur - I've used Chaotica's gaussian as a post-transform in the past, but I've recently been using sineblur as a normal transform because it has effects I find more enjoyable at the present. Often, using post affines on this transform is useful, as you can spread the dots out in patterns that scatter around the fractal more, rather than purely following the shape of what exists.
In this case, there's a lot of dead space in the fractal caused by blur, the final transform and the background, so making use of the dead space with stars was the least that needed to happen for it to seem a bit less dead XD