Was not really happy with amount of blur gauss shader from CustomFX gave me in retro city rampage and shantae, which i was trying to smooth out, so i edited gauss shader fo control amount of blur right in confg. Dont have now time to mess with github repositories and dont really know how to comit changes right way, so im just posting my modification to original shader here in hope that someone will add it to official distribution (if you do - please dont remove comments and different commented examples, idea was to let people better understand what they have to do with that settings).
pastebin.com/14Eu3R6C
detailed description written in comments.