https://forum.juce.com/t/drawing-an-arrow-with-custom-endcapstyle-suggestion/18280
Drawing an arrow with custom EndCapStyle suggestion - General JUCE discussion - JUCE
Jul 1, 2016 - This applies to the current development tip. It is currently not possible to create a path with PathStrokeStyle with an Arrowhead and a custom EndCapStyle....
drawingarrowcustomsuggestiongeneral