- The color pickers are used only if there is not a map asigned in the slot. In this case, it works exactly as you suggested (input color instead map).
- The spinner after the maps defines the probability to use that specific map/color.
- Default map/color is used only if all other maps/colors are disabled. It's not blended with them.
We introduced this slot simply as a container when Forest Color replaces an existing map in the material (When Max asks about "Replace Map ? ->Keep old map as sub-map").
- Yes, Override works exactly as you described: it gets a random color from the gradient, and applies it using a random strength between min/max values.
- The way that the tint color is applied depends of the "Blending Mode" selector. It works similar to the Photoshop blending modes.
I hope everything is clear. If not, please don't hesitate to ask.