Does anyone know if there's a URL for a plugin DTD that includes the
latest additions (the 'extensions' and 'errorHandler' elements, for
example)? IDEA loads plugins correctly (I have a working error handler)
with the 'current' (or no) DTD specified in plugin.xml so it's just the
error-highlighting in the editor that's mildly annoying. I've had a
browse on the plugins website but found just the original DTD.
An unrelated question (and maybe it belongs in the openapi group) : is
it possible to configure a toolwindow to display an icon on the Window ->
Tool Windows menu? Or is that honour reserved for IDEA's own toolwindows?