I'm original author of showlights generator from the toolkit so yeah. There was couple revisions (3 to 5 major one) on showlights generator, early version would allow to change fog(aka venue ambient lights color like purple or blue) each 2 seconds without much regard just based on merged note pitches from all arrangements(it was a mess for soar and fast\metal and heavy songs), but I keep on filtering showlights and shaping it's final form to look more like oDLC and in-game songs, minimal, almost none fog color changes, all lights should be stage light and maybe laser effect at the end of the song. showlights by default looks decent, but I myself would like to have ability to mimic live light of a certain concert (I would like to do this to all of my Amon Amarth cdlc)
cozy1 and iminashi has had helped a lot with showlights generator and format itself, EOF, for example can define events like crowd reactions, which is also part of the show... I'm still not sure how to mimic strobe effect tho Anyways, If you'd like to have raw showlight notes scrapped from all arrangements let me know I can add button to generate unfiltered xml for you...
EDIT:
Here is iminashi's showlights tool on github if you're still interested
https://github.com/iminashi/ShowlightEditor