Does "adventureLook" actually set the look of the entire adventure? It doesn't sound likely given its a console command, and not something in the actual menus. I suspect it only applies it to your machine, and anybody downloading your adventure gets the normal unfiltered look. Can anyone confirm this?
I can confirm it actually sets the look for the whole adventure, no matter who plays or downloads this.
I know this because a) I made a mystery adventure with the noir filter and people kept asking how I achieved it, meaning it automatically applied itself to their computers, and b) I played a Spore-buddy's mission and they had applied a pixellated look for a retro videogame-based mission.
All you have to do is save the mission in the editor whilst the effect is still active and it should automatically apply to everyone who downloads it.