It does work. At least on Windows. I actually use it all over the place in my plugin. BUT… I noticed very often it wouldn’t display titles at all. Re-render of HTML (dialog re-open or plugin reload) sometimes helps. I believe there’s some kind of bug.
I’ll note that PS seems highly variable in terms of how long the mouse needs to hover before the label shows up, and there are occasions where it seems that I can convince Ps not to render a tooltip if a previous one was displayed for a long while…
so something’s up, but not sure where the issue lies (cc @pkrishna , @Sujai )
IMO it’d be bad UX, however the standard way of implementing titles/tooltips is using hover/mouseidle event and a set time which I doubt it would be exposed. so our best bet for customization is a 3rd party plugin, have anyone tried to use one with UXP?