Where is the file that does the fast forward speed stuff. 2x 3x

I would like to see how this mechanic works and possibly modify it for fun so I would like to know where the 2x speed and the 3x speed is. please

They are inside stonehearth\ui\game\widgets\game_speed
If you want to play at a different speed by default, you can add this to your user_settings:

"simulation" : {
		"game_speed" : 4.0

Which means you can also run at 0.5 speed and things like that.

We don’t take responsibility if the game behaves badly when you increase the speed too much.