Mateusz Paprocki

@hoxbro, can you start reviewing this? There are still things for me to finish, but at least the parts we discussed in `bokeh-internal` and `ValueRef` changes.

This is ready for review, ~~though I still will be pushing some hover related tests~~. I kept all the grammar related logic, but disabled the new syntax for now, because...

I started issue #14570 to track progress on what wasn't completed here.

> I think this will fall under the same underlying problem as seen in https://github.com/holoviz/holoviews/issues/6527 No. This is a case of `frame_width` and `frame_height` not working in complex layouts. I...

> Also I'm not sure whether I should remove the triage label or not. If it was already discussed one way or another (it was in this case), then you...

> Should I label this as feature or bug? I would use `task` in such case. Focus rings are already supported, so perhaps not a feature. Calling this a bug...

It requires manual layout invalidation, because the plot is managed by the grid plot, yet in fullscreen mode it's expected to work standalone. I'm quite surprised it works at all,...

@draperjames, sure. The idea to be able to interact with contents of a tooltip has been around for awhile, though in various forms. One thing to keep in mind is...

It's sufficient to make a copy of the list of lines to make it work: ```py CustomJS(args=dict(lines=[*lines], index=i), code=code_) ``` which indicates that cycle detection algorithm is at fault.

It's a bug and most likely already covered by existing bokeh issues with `tag: layout` label. The problem here is that CSS grid requires setting up tracks (rows and columns)...