Currently you have to explicitely set color and icon for a pin after creating it, or you can move pins to some group and set these properties for all items in a group at once.
Yet, it would be highly desirable, that in case no color and icon was explicitely set for a pin (i.e. if they remain in default state) and if a pin would be moved to some group, it would automatically inherit color and icon of that group.
Same for properties of lines and polygons.
That would save a lot of clicks.
I suggest setting for this could be located in “Map” tab.