As this would be a very nice tweak for this mod.
1) Path lights always on in Caves (since there are no caves yet in dst this wouldn't need to be added, but could be (softcoded (disabled if dst is detected, i'm guessing your 2 mods are seperate for dst and ds, but still maybe worth checking)).
2) Extra option to allow crafting of all colors from within the game (add a gem to crafting them)
3) Option for seasonal lighting as the "environment light (daytime)" changes have these change to with an onupdate code changing the light color (seems doable, but don't know lua enough to make a working example).