community.tibco.com › products › spotfireTIBCO Spotfire® | TIBCO Community 7) Data Labels on Charts : So if i have value labels on a visualisation and they overlap - they should space out and use a leader line (just like on maps which are beautiful by the way) - again - pie chart are a perfect example of this. D3 and almost all JS pie charts do this - have a line away from the section of the pie to a value label.