How to develop Arrow & Bubbles in Design studio

Hello All,

Need your help to develop below two components which contains difference between two columns :-

Currently using Design studio version - 1.2

1)How do I develop these "Arrows" in Design Studio ( I have inserted arrow as image component but i think it is not right way to display )

2)How do I develop these "Bubbles" in Design Studio. ( for example :- If i use text box then converst it to bubble by using CSS but if the chart values change, we cannot have a simple text object)

Please let me know any possible answer to design above components.

Thanks & Regards,

Tulika