I think it would be great if tooltips were easier to implement in the pre-defined JUCE controls, like they are in the Button class. Any thought of adding this functionality? It’s cool how these controls are ready to go, but it’s a pain to subclass them just to add tooltips, which have become so ubiquitous. Perhaps even making Component inherit from TooltipClient, implemented as buttons have been…? My two cents/pence. 
Yes, not a bad idea. I’m just doing a new release so it won’t make it into that, but I’ll probably do it soon.