@Subpath
steps:
create a clipped image so only the interesting parts are visible, this will be the region
set a name for this clipped image object, and select the Filter Image role in Object Options
In the repeater, select the Region colorizer, and edit its option (Edit Colorizer)
In the Region colorizer options select the object name given to the clipped image.
One problem with this can be that the area defined by the path of the repeater is used to determine the area for the region, so they are always center aligned.
In the future I will try to improve this.