Sliders write straight to the live renderer for the active phase. Other phases keep their last-edited
values. When you're happy, hit Export to copy the full PHASE_LIGHT_CONFIG block.
Hemi (ambient fill)
Sun (directional)
Scene Ambient
Strength multiplies the color before it's applied — lets you keep a tint and pump the brightness.
Sky / Clear
Fog of War tint
Multiplier applied to fogged tile colours (0 = fully black, 1 = no darkening). Re-applies live to every already-fogged tile when you slide.