PositionerIndicator rpc methods
I wrote an e2e test and by that tried to use the rpc methods of that widget. I am not quite sure what they were supposed to do, and I could not really figure it out. This should be checked:
widget.indicator_width = 20 # Seems to have no effect
widget.rounded_corners = 20 # Seems to have no effect
widget.set_range # Could get better docstring to explain that this sets range relevant for set_value
widget.set_value # Docstring missing fully
widget.vertical = True/False # has no effect