In AfterEffects, create a star with many points (something around 20 points) and then fill it with the color you want.
Add some Blur to it and apply a Glow effect. Play with values to get your desired result. If you want a second color, just add Stroke to the star.
Hope it's the thing you were searching for

Example with a 4-pointed Star.

Example with a 17-pointed Star

Last edited by Shahriar (August 30, 2016 (10:44am))

You're welcome! Glad it helped.

~I didn't understand your second line Not sure if it's an idiom or what!
But I'll be happy if someone tells me what does that mean

We don't worry to much about old threads being resurrected with helpful answers, it's not like this is a tech forum where a difference in a year or two of tech could completely invalidate the answer or even the question, generally a movie FX question done last year is still pertinent this year, maybe not to you, but someone might be searching for the same thing which could help them. However avoid responding to someones super old post or response with something like 'neat' although if I saw something like that I might just delete the reply to sink the thread.